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NEW K-8 Math Lessons Now Available
Inspiring Science & Math Lessons for K-8. Try it free.K-8. Try it free.Key Stage 1 & 2.F-6. Try it free.
Get instant access to hours of fun, standards-based videos, reading material, quiz games, simple DIY activities & more.
NEW! Fun Math Lessons
For Grades K-8. Try it free.Grades K-8. Try it free.Key Stage 1 & 2.Grades F-6. Try it free.
Get instant access to hours of fun, standards-based videos, reading material, quiz games, simple DIY activities & more.
intro to multiplication, categorygrades35, multiply, multiplication, multiplying, multiplied, factor, factors, product, products Grades 3-5 
Intro to Multiplication equivalent fractions, categorygrades35, fraction, fractions, denominator, numerator, denominators, numerators, equivalent Grades 3-5 Equivalent Fractions money: combinations of bills & coins, categoryk2, money, coin, coins, bill, bills, dollar, dollars, penny, nickel, dime, quarter, combine, combination, pennys, pennies, nickels, dimes, quarters, cent, cents Grades K-2 Money: Combinations of Bills & Coins addition & subtraction within 1,000, categorygrades35, add, addition, adding, subtract, subtraction, subtracting, sum, addened, total Grades 3-5 Addition & Subtraction Within 1,000 intro to addition, categoryk2, add, addition, adding, sum, total Grades K-2 Intro to Addition long division (standard algorithm for division), categorygrades68, long division, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet, classic, old school, traditional, standard, algorithm Grades 6-8 Long Division (Standard Algorithm for Division) lines of symmetry, categorygrades35, symetry, symmetry, line, lines, symetrical, symmetrical, mirror, miror Grades 3-5 Lines of Symmetry powers of 10, categorygrades35, ten, 10, power, powers, multiplies, exponent, exponents, exponential Grades 3-5 Powers of 10 percents, categorygrades68, percent, percents, ratio, ratios, 100, one hundred Grades 6-8 Percents dividing fractions by fractions, categorygrades68, fraction, fractions, denominator, numerator, denominators, numerators, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet Grades 6-8 Dividing Fractions by Fractions composing & decomposing numbers (11-19), categoryk2, compose, composing, decompose, decomposing, decomposting, put together, break apart, separate, split Grades K-2 Composing & Decomposing Numbers (11-19) measure mass & volume (metric system), categorygrades35, mass, volume, measure, metric, gram, grams, liter, milliliter, weight, volumetric Grades 3-5 Measure Mass & Volume (Metric System) intro to angles, categorygrades35, angle, angles, degrees, right, acute, obtuse Grades 3-5 Intro to Angles intro to fractions using the number line, categorygrades35, number line, number lines, fraction, fractions, denominator, numerator, denominators, numerators Grades 3-5 Intro to Fractions Using the Number Line intro to finding area, categorygrades35, area, areas, space, 2d, 2-dimensional, 2 dimensional, square, square unit, square units Grades 3-5 Intro to Finding Area partition shapes into equal shares, categoryk2, shape, shapes, split, cut, partition, partitions, partitioning, partitioned, half, halves, halfs, quarter, quarters, fourth, fourths, equal part, equal parts, third, thirds Grades K-2 Partition Shapes Into Equal Shares introduction to order of operations, categorygrades35, pemdas, gems, grouping, groupings, parenthesis, parentheses, brackets, braces, order, order of operations, ordering, operations order, operations Grades 3-5 Introduction to Order of Operations multiplying up to 4 digits (area model), categorygrades35, area model, area, box, multiply, multiplication, multiplying, multiplied, factor, factors, product, products Grades 3-5 Multiplying Up To 4 Digits (Area Model) intro to division, categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet Grades 3-5 Intro to Division numbers in expanded & word form (1,000 & beyond), categorygrades35, expand, expanded form, expanded forms, word form, words, writing, write Grades 3-5 Numbers in Expanded & Word Form (1,000 & Beyond) rounding (nearest 1,000 & beyond), categorygrades35, estimate, estimation, round, rounding, approximate, approximation, nearest Grades 3-5 Rounding (Nearest 1,000 & Beyond) compare non-equivalent fractions, categorygrades35, fraction, fractions, denominator, numerator, denominators, numerators Grades 3-5 Compare Non-Equivalent Fractions tell time (nearest minute), categorygrades35, time, minute, hour, minutes, o'clock, clock, clocks Grades 3-5 Tell Time (Nearest Minute) add & subtract fractions (like denominators), categorygrades35, add, addition, adding, subtract, subtraction, subtracting, fraction, fractions, common denominator, common denominators, like denominators, numerator, denominator Grades 3-5 Add & Subtract Fractions (Like Denominators) scaled picture graphs & bar graphs, categorygrades35, bar graph, bar graphs, picture graph, picture graphs, picto graph, picto graphs, scaled, scaling Grades 3-5 Scaled Picture Graphs & Bar Graphs rounding (nearest 10 and 100), categorygrades35, estimate, estimation, round, rounding, approximate, approximation, nearest Grades 3-5 Rounding (Nearest 10 and 100) multiplication using the standard algorithm, categorygrades35, multiply, multiplication, multiplying, multiplied, factor, factors, product, products, standard algorithm, standard algorithms, standard, traditional, old-school, old school Grades 3-5 Multiplication Using The Standard Algorithm introduction to perimeter, categorygrades35, perimeter, peremeter, peremiter, perimater, length, lengths, distance, measure, measurement Grades 3-5 Introduction to Perimeter add & subtract using the standard algorithm, categorygrades35, add, addition, adding, subtract, subtraction, subtracting, sum, addened, standard algorithm, standard algorithms, standard, traditional, old-school, old school Grades 3-5 Add & Subtract Using the Standard Algorithm intro to quadrilaterals and their attributes, categorygrades35, shape, shapes, quadrilaterals, quadrilateral, quadralaterals, quadralateral, rectangle, rectangles, square, squares, parallelogram, paralellogram, parallelograms, paralellograms, rhombus, 4 sides Grades 3-5 Intro to Quadrilaterals and their Attributes measure elapsed time, categorygrades35, time, elapsed, elapse, stopwatch, stop watch, timer, timing, clock Grades 3-5 Measure Elapsed Time multiplication properties (commutative, associative & distributive), categorygrades35, property, properties, comutative, comutitive, commutative, commutative, associative, asociative, distributive, distribution, distribute Grades 3-5 Multiplication Properties (Commutative, Associative & Distributive) intro to 3d shapes, categoryk2, 3d, 3 d, 3-d, shape, shapes, cube, cubes, prism, prisms, sphere, spheres, rectangular Grades K-2 Intro to 3D Shapes lines, line segments, & rays, categorygrades35, line, lines, segment, segments, ray, rays, point, points Grades 3-5 Lines, Line Segments, & Rays multiplying fractions by fractions, categorygrades35, multiply, multiplication, multiplying, multiplied, fraction, fractions, numerator, denominator, numerators, denominators Grades 3-5 Multiplying Fractions by Fractions interpreting fractions as division, categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet,
fraction, fractions, denominator, numerator, denominators, numerators Grades 3-5 Interpreting Fractions as Division division using partial quotients (the big 7 model), categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotiet, partial quotient, partial quotients, big 7, big seven Grades 3-5 Division Using Partial Quotients (The Big 7 Model) four seasons and day length, categoryk2, season, seasons, day, day length, daylight, seasonal, fall, autumn, autum, winter, sping, spring, summer, hibernate, hibernation Grades K-2 Four Seasons and Day Length chemical vs. physical changes, categorygrades35, chemical change, physical change, chemical, physical, chemical reaction, reactions, chemical reactions, chemistry, states of matter, mixture, mixtures, changes, change, elephant toothpaste, elephant, toothpaste, foam, magnatism Grades 3-5 Chemical vs. Physical Changes bacteria & viruses, categorygrades68, bacteria, virus, viruses, covid, covid19, covid-19, microbe, microbes, microorganisms, microorganisms, micro-organisms, micro organisms, microorganism, micro-organisms, micro organism, flu, sick, infection, vaccine, vaccination, microscope Grades 6-8 Bacteria & Viruses patterns in the sky, categoryk2, sun, star, stars, moon, pattern, patterns, sky, rise, set, predict, prediction, predicted Grades K-2 Patterns in the Sky intro to subtraction, categoryk2, subtract, subtraction, subtracting, take away, taking away, difference Grades K-2 Intro to Subtraction read & write numbers to 100, categoryk2, read, reading, writing, writing, draw, drawing, 100, 120 Grades K-2 Read & Write Numbers to 100 identify & draw shapes by attributes, categoryk2, draw, dawing, attribute, attributes, atribute, atribues, shape, shapes, circle, triangle, square, hexagon, rectangle, circles, triangles, squares, hexagons, rectangles Grades K-2 Identify & Draw Shapes By Attributes multiplication comparisons, categorygrades35, compare, comparison, comparisons, comparing, multiplication, multiplicative, multiplicitive Grades 3-5 Multiplication Comparisons intro to equality (find a missing number), categoryk2, equal sign, equality, missing number, equal, unknown number, add, addition, adding, subtract, subtraction, subtracting, sum, addend, total Grades K-2 Intro to Equality (Find a Missing Number) line plots with fractional measurements, categorygrades35, line plot, line plots, line graph, line graphs, line chart, line charts, number line, number lines Grades 3-5 Line Plots with Fractional Measurements classify objects by attribute (color, size & shape), categoryk2, classify, clasify, classifying, classification, sort, sorting, group, grouping, attribute, attributes, atribute, atribues, shape, shapes, color, colors, size, sizes Grades K-2 Classify Objects by Attribute (Color, Size & Shape) composing & decomposing numbers (1-10), categoryk2, compose, composing, decompose, decomposing, decomposting, put together, break apart, separate, split Grades K-2 Composing & Decomposing Numbers (1-10) variation of traits, categorygrades35, traits, trait, variation, adaptation, adaptations, parent, offspring, reproduction, natural selection, heredity, hereditary, inherited Grades 3-5 Variation of Traits multicellular organisms, categorygrades68, cell, cells, tissue, tissues, organ, organs, body system, body systems, multicellular, multi cellular, multi-cellullar, organization, structure, muscles, muscular, nervous, sense, senses, receptor, receptors, stomach, lungs, brain, nerve, nerves, kidney, brain, intestine, intestines, stomach, digestive, digest, respiratory, renal, excretory Grades 6-8 Multicellular Organisms introduction to sound, categoryk2, sounds, sound, hear, hearing, ear, vibrate, vibration, speaker, tune, music Grades K-2 Introduction to Sound create new shapes from existing ones, categoryk2, shape, shapes, compose, composing, create new shapes, make new shapes, new shapes, more shapes Grades K-2 Create New Shapes From Existing Ones comparing 3-digit numbers, categoryk2, compare, comparing, comparison, place value, place values, 3-digit, 3 digits, three digit, three digits, greater than, less than, inequalities, inequality Grades K-2 Comparing 3-Digit Numbers calculate volume (l x w x h), categorygrades35, volume, volumes, lxwlh, l x w x h, length times width Grades 3-5 Calculate Volume (l x w x h) decimals to the thousandths, categorygrades35, decimal, decimals, thousandth, thousandths, estimate, estimation, round, rounding, approximate, approximation, nearest Grades 3-5 Decimals to the Thousandths division using an area model (up to 4-digit dividend), categorygrades35, division, divide, dividing, divisions, split, divison, dividend, divisor, quotiet, partial quotient, partial quotients, big 7, big seven, area model, box model, area, box Grades 3-5 Premieres December 2021
Division Using an Area Model (Up to 4-Digit Dividend) balanced & unbalanced forces, categorygrades35, force, forces, strength, direction, balanced, unbalanced, motion, hovercraft, gravity Grades 3-5 Balanced & Unbalanced Forces atoms & molecules, categorygrades68, atom, atoms, molecules, molecule, compound, chemical, reaction, chemical reaction, chemicals, atomic, proton, neutron, electron, protons, neutrons, electrons Grades 6-8 Atoms & Molecules what is engineering?, categoryk2, engineering, engineer, engineered, enginer, design, design process, inventor, invention, inventions Grades K-2 What is Engineering? classify shapes in a hierarchy (quadrilaterals & triangles), categorygrades35, classify, clasify, classification, classifications, sort, organize, hierarchy, heirarchy, hiarchy, hiearchy, shape, shapes, quadrilaterals, quadrilateral, quadralaterals, quadralateral, rectangle, rectangles, square, squares, parallelogram, paralellogram, parallelograms, paralellograms, rhombus, 4 sides, triangle, triangles, polygon, polygons Grades 3-5 Classify Shapes in a Hierarchy (Quadrilaterals & Triangles) add & subtract fractions (unlike denominators), categorygrades35, add, addition, adding, subtract, subtraction, subtracting, fraction, fractions, common denominator, common denominators, like denominators, numerator, denominator, different denominator, different denominators, unlike denominator, unlike denominators Grades 3-5 Add & Subtract Fractions (Unlike Denominators) understanding the basic coordinate plane, categorygrades35, coordinate, co-ordinate, cordinate, coordinates, co-ordinates, cordinates, plane, grid, grids, planes, quadrant, quadrants Grades 3-5 Understanding the Basic Coordinate Plane intro to data: pictographs & bar graphs, categoryk2, bargraph, bargraphs, bar graph, bar graphs, picture graph, picture graphs, picto graph, picto graphs, pictograph, pictographs, pictografs, pictograf Grades K-2 Intro to Data: Pictographs & Bar Graphs intro to data: line plots, categoryk2, line plot, line plots, line graph, line graphs, line chart, line charts, number line, number lines Grades K-2 Intro to Data: Line Plots add & subtract within 100, categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addened, total Grades K-2 Add & Subtract Within 100 add more than 2 numbers, categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addened, total, 3 numbers, three numbers, 4 numbers, four numbers Grades K-2 Add More Than 2 Numbers comparing 2-digit numbers, categoryk2, compare, comparing, comparison, place value, place values, 2-digit, 2 digits, two digit, two digits, greater than, less than, inequalities, inequality Grades K-2 Comparing 2-Digit Numbers skip counting (2s, 5s, 10s & 100s), categoryk2, skip count, skip counting, skip, count, counting, 2s, 5s, 10s, 100s Grades K-2 Skip Counting (2s, 5s, 10s & 100s) what is science? (k-2 version), categoryk2, investigate, clue, clues, science, what is science, what is science?, experiment, experimentation, science, scientist, engineer, engineering, evidence, practice, practices, method, scientific, control, controlled, astronomy, biology, chemistry, paleontology, evidence, claim, claims, variable, variables, inquiry, investigation, investigations, law, laws, theory, theories, hypothesis Grades K-2 What Is Science? (K-2 Version) division with unit fractions & whole numbers, categorygrades35, fraction, fractions, denominator, numerator, denominators, numerators, division, divide, dividing, divisions, split, divison, dividend, divisor, quotient, quotiet Grades 3-5 Division with Unit Fractions & Whole Numbers intro to measurements: weight & length, categoryk2, measurement, measure, measurements, measuring, weight, weights, mass, masses, length, long, short, heavy, light Grades K-2 Intro to Measurements: Weight & Length intro to 2d shapes, categoryk2, shape, shapes, flat, 2d, 2-d, 2 dimensional, two dimensional, 2 dimentional, two dimentional, square, squares, rectangle, rectangles, triangle, triangles, circle, circles Grades K-2 Intro to 2D Shapes measure & add length (intro to the ruler), categoryk2, ruler, rulers, inch, inches, cm, centimeters, centimeter, centi meter, length, distance, lengths, distances Grades K-2 Measure & Add Length (Intro to the Ruler) add & subtract within 20, categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addend, total Grades K-2 Add & Subtract Within 20 strategies to add & subtract within 20 (make a 10 & doubles facts), categoryk2, add, addition, adding, subtract, subtraction, subtracting, sum, addend, total, strategy, strategies, make 10, make ten, make a ten, make a 10, making 10, making a 10, making a ten Grades K-2 Strategies to Add & Subtract within 20 (Make a 10 & Doubles Facts) intro to counting in groups (arrays), categoryk2, array, arrays, group, groups, grouping, count is groups, counting in groups, row, rows Grades K-2 Intro to Counting in Groups (Arrays) comparing quantities up to 10, categoryk2, compare, comparing, comparison, greater than, less than, more than, match, matching Grades K-2 Comparing Quantities up to 10 solve 2-step problems (all 4 operations), categorygrades35, two step, 2 step, 2-step, multi step, multistep, two part, 2 part, 2-part, two part Grades 3-5 Solve 2-Step Problems (All 4 Operations) convert units of measurement, categorygrades35, convert, conversion, unit, units, measurement, measurements, lbs, pound, pounds, oz, ounce, ounces, meter, meters, cm, centimeter, centimeters, inch, inches, feet, foot, foots, feets Grades 3-5 Premieres December 2021
Convert Units of Measurement intro to negative numbers, categorygrades68, negative, negative numbers, integer, integers, number line, number lines,comparing, comparison, inequality, inequalities, greater than, less than Grades 6-8 Intro to Negative Numbers weathering & erosion, categorygrades35, weathering, erosion, erosions, deposition, wind, ice, freeze, freezing, deposited, rock, rocks, sediment, sedimentary, sediments, glacier, grand canyon, river, mountain, landform, land form, land, land forms, soil, topsoil, change, changes Grades 3-5 Weathering & Erosion tectonic plates, categorygrades68, tectonics, tectonic, plates, plate, tectonic plates, earthquake, mountains, boundary, boundaries, convergent, divergent, transform, continental drift Grades 6-8 Tectonic Plates the five senses, categoryk2, sense, senses, see, hear, touch, taste, smell, see, eye, eyes, ear, ears, mouth, tongue, tonge, nose, noses, skin, hands, seeing, hearing, touching, tasting, tasteing, smelling, seeing Grades K-2 The Five Senses structure of living things, categorygrades35, structure, structures, function, functions, animal, animals, plant, plants, bone, skin, eyes, survival, endoskeleton, exoskeleton, skeleton, living, alive, life, academy, lizard, bob Grades 3-5 Structure of Living Things solar & lunar eclipses, categorygrades68, eclipse, eclipses, solar eclipse, lunar eclipse, blood moon Grades 6-8 Solar & Lunar Eclipses introduction to weather, categoryk2, weather, rain, raining, rainy, snow, snowy, snowing, storm, stormy, wind, winds, windy, sunny, sun, clouds, cloud, cloudy Grades K-2 Introduction to Weather water cycle (3-5 version), categorygrades35, water, vapor, gas, rain, water cycle, precipitation, snow, hail, cloud, clouds, weather, dew distillation, condensation, condense, evaporate, evaporation, cycle, hydrological, hydrologic, hydro, watercycle Grades 3-5 Water Cycle (3-5 Version) chemical reactions, categorygrades68, law of conservation, chemical, chemistry, react, reaction, reactions Grades 6-8 Chemical Reactions simple machines, categoryk2, simple machine, simple machines, pulley, pulleys, wheel, axel, axle, lever, levers, screw, force, forces, ramp, incline plane, included plane, wedge, strength, direction, machine, machines, levers, tool, tools Grades K-2 Simple Machines properties of matter, categorygrades35, matter, properties, chemicals, density, chemical, conductivity, conductive, magnetism, solubility, solube, property, sulfur hexafluoride, slime, mass, volume, explosion, explosions, mater Grades 3-5 Properties of Matter natural selection, categorygrades68, natural selection, evolution, adapt, adapting, adaptation, darwin, finch, finches, evolve Grades 6-8 Natural Selection oceans, lakes and rivers, categoryk2, ocean, oceans, water, waters, lake, lakes, river, rivers, pond, glacier, glaciers, groundwater Grades K-2 Oceans, Lakes and Rivers earth’s orbit & rotation, categorygrades35, orbit, rotation, spin, earth, earth's, earths, sky, space, shadow, shadows, constellations, cunstollation, constellation, parallax, day, night, sun, star, stars, pattern, patterns, geocentric, heliocentric, leap, zone, sundial, pendulum, planet, planets Grades 3-5 Earth’s Orbit & Rotation electricity & circuits, categorygrades68, electrical, electricity, electronic, electronics, circuit, circuits, closed circuit, open circuit, series, parallel, resistor, wire, capacitor, transistor, motor, led, potentiometer Grades 6-8 Electricity & Circuits living vs. non-living things, categoryk2, living, non-living, nonliving, not living, not-living, alive, dead, live, life, rock, nutrients, breath, breathing, reproduce, reproduction Grades K-2 Living vs. Non-Living Things fossils & extinction, categorygrades35, fossil, fossils, extinct, extinction, dinosaur, dinosaurs, tar, brea, ancient, prehistoric, cat, wolf, herbivore, carnivore, omnivore, carnivores, omnivores, herbivores, paleontologist, wolf, dig, digging, fosil, fosils Grades 3-5 Fossils & Extinction electromagnetic spectrum, categorygrades68, electromagnetic spectrum, radio, light, visible, microwave, microwaves, micro wave, micro waves, ir, infrared, infra red, radiation, radiate, rainbow, light wave, waves, wave, uv, ultraviolet, glow, glowing, radioactive, gamma, x-ray, x-rays, x ray, x rays, xray, xrays, wavelength, wave length, amplitude, frequency, frequencies Grades 6-8 Electromagnetic Spectrum heating and cooling, categoryk2, heating, cooling, heat, cool, hotter, colder, temperature, degree, degrees, reversible, not reversibe, non-reversible, nonreversible, fahrenheit, celsius, melting, melt, freeze, freezing Grades K-2 Heating and Cooling energy transfer, categorygrades35, energy, energy transfer, transfers, electric, electricity, conversion, light, sound, heat, generator, generate, generating, battery, batteries, charge, charging, motion, solar, wind, thermal, hydropower Grades 3-5 Energy Transfer plant & animal cells, categorygrades68, cell, cells, nucleus, vacuole, chloroplast, cell wall, cell membrane, chlorophyll, cellular, mitochondria, golgi, golgi apparatus, lysosome, microscope Grades 6-8 Plant & Animal Cells inspired by nature (biomimicry), categoryk2, biomimicry, mimic, mimicry, design, invention, inspire, inspired, inspriation, inspirational, designs, solution, invention, inventions Grades K-2 Inspired by Nature (Biomimicry) sun and other stars, categorygrades35, sun, star, space, earth, distance, size, bright, distance, light year, planisphere, telescope, sirius, rigel, betelgeuse, telescope, telescopes Grades 3-5 Sun and Other Stars causes of seasons, categorygrades68, tilt, season, seasons, summer, fall, winter, spring, sunlight, sun light, 23.5, 23, orbit Grades 6-8 Causes of Seasons introduction to light, categoryk2, light, lights, lite, lyt, liet, transparent, translucent, opaque, dark, darkness, see, eyes, eye, illuminate, illuminated, light source, candle, laser, lightbulb, light bulb, bright Grades K-2 Introduction to Light brain processing of senses, categorygrades35, brain, nerves, nerve, nervous, sensory, sense, senses, receptor, signal, taste, touch, smell, see, hear, vision, touch, reaction time, engineer, engineering, engineers Grades 3-5 Brain Processing of Senses symbiosis (interactions between organisms), categorygrades68, symbiosis, symbiotic, competition, relations, relationships, interact, interaction, commensalism, mutualism, parasite, parasitic, parasitism, predator, prey, predation Grades 6-8 Symbiosis (Interactions Between Organisms) pollination and seed dispersal, categoryk2, pollen, pollens, pollin, polen, pollinator, pollinators, pollination, pollinating, pollenator, pollenators, pollenation, pollenating, seed, seeds, disperse, dispersal, dispersing, dispersor, plant, plants, bee, bugs, bug Grades K-2 Pollination and Seed Dispersal adaptations and the environment, categorygrades35, animal, animals, plants, plant, adapt, adapting, adaptation, adaptations, predator, prey, camouflage, sloth, armadillo, echidna, life, environment, environments, finch, finches, beak, beaks, beakes, adaptions Grades 3-5 Adaptations and the Environment electric & magnetic fields, categorygrades68, field, fields, electric, magnetic, magnet, magnets, magent, magents, electro magnet, electromagnet, electromagnets, attract, attractive, repel, repulsive Grades 6-8 Electric & Magnetic Fields material properties and purposes, categoryk2, material, property, properties, purpose, purposes, color, hardness, texture, flexibility, strength, absorbency, absorbent Grades K-2 Material Properties and Purposes collisions, categorygrades35, collision, collisions, energy, energy transfer, moving, motion, transfer, impact, crash, contact, rube goldberg, force Grades 3-5 Collisions classification of living things, categorygrades68, classify, classification, taxonomy, shared trait, shared traits, domain, kingdom, phylum, class, order, family, genus, species, scientific name, armadillo, salamander, taxonomic, hierarchy Grades 6-8 Classification of Living Things magnets & static electricity, categorygrades35, magnet, magnets, magnetism, magnetic, static electricity, static, push, pull, electromagnet, electromagnets, attract, attraction, repel, repulsion, ferro fluid, electrical, van de graff Grades 3-5 Magnets & Static Electricity pushes and pulls, categoryk2, pushes, push, pulls, pull, force, forces, strength, direction, motion, motions, move, movement Grades K-2 Pushes and Pulls food webs, categorygrades35, food, web, chain, webs, chains, sun, decompose, decomposers, producer, producers, consumer, consumers, apex, bacteria, fungi, fungus, compost, energy, photosynthesis, foodweb, foodchain, foodwebs, foodchains Grades 3-5 Food Webs synthetic materials, categorygrades68, synthetic, chemical reaction, chemical, chemistry, reaction, man made, cman-made, chemical, chemistry, nylon, biodiesel, nitiniol, foam, unnatural Grades 6-8 Synthetic Materials introduction to traits, categoryk2, trait, traits, brother, sister, parent, offspring, offsprings, baby, babies, mom, dad, mother, father, daddy, mommy Grades K-2 Introduction to Traits conservation of matter, categorygrades35, conservation, conserve, burn, reaction, reactions, chemistry, physical, matter, dry ice, vanish, disappear, dissolve, law Grades 3-5 Conservation of Matter competition in ecosystems, categorygrades68, ecosystem, ecosystems, eco system, eco system, ecology, ecological, competition, population, sustain Grades 6-8 Competition in Ecosystems plant growth conditions, categoryk2, plant, plants, grow, growth, soil, sand, clay, loam, soils, soil quality Grades K-2 Plant Growth Conditions ecosystems, categorygrades35, ecosystem, ecosystems, habitat, habitats, ecology, eco, invasive, rainforest, living, non-living, terrarium, bacteria, environment, environments, terrariums, ecosytem, ecosytems Grades 3-5 Ecosystems wave reflection, absorption & transmittance, categorygrades68, wave, waves, reflect, reflection, absorb, absorption, transmit, transmittance, sound, light, refract, refraction, wavelength, wave length, amplitude, frequency, frequencies Grades 6-8 Wave Reflection, Absorption & Transmittance comparative anatomy, categorygrades68, anatomy, anatomical, evolution, natural selection, bone, bones, embryo, embryological, arms, limbs, common ancestor, phylogeny, evolutionary phylogenetic Grades 6-8 Comparative Anatomy animals help their babies survive, categoryk2, offspring, offsprings, baby, babies, animal, animals, skink, owl, aligator, alligator, croc, crocodile, kangaroo, pouch, survive, survival, chirp, moo, patterns in behavior, behavior, behavioral pattern, behavioral patterns Grades K-2 Animals Help Their Babies Survive renewable vs. nonrenewable resources, categorygrades35, renew, renewable, non-renewable, nonrenewable, fossil fuel, fossil fuels, sunlight, wind, power, resources, energy, engine, coal, oil, natural gas, ethanol, algae, generator, natural resource, natural resources Grades 3-5 Renewable vs. Nonrenewable Resources solids, liquids and gases, categoryk2, solid, solids, liquids, liquid, gases, gas, states of matter, phases, phases of matter, phase, state, matter, forms, mater Grades K-2 Solids, Liquids and Gases engineering design process, categorygrades68, engineer, engineering, design, design process, engineering design process, build Grades 6-8 Engineering Design Process human body systems, categorygrades35, human, body, organ, organs, circulatory, circulation, digestive, digestion, respiratory, respiration, nervous, systems, system, heart, blood, lungs, nutrient, nutrients, exercise, nutrition, health, skeletal, skeleton, muscles, muscle, skeleton, skeletons Grades 3-5 Human Body Systems what is science? (6-8 version), categorygrades68, science, science and engineering practices, practices of science, sep, seps, ngss, next generation science, crosscutting, cross cutting, cross-cutting, dci, dcis Grades 6-8 What is Science? (6-8 Version) biodiversity of life on earth, categoryk2, diversity, diverse, life, animals, biodiversity, bio-diversity, habitat, habitats, lemur, scorpion, frog, skunk, backyard Grades K-2 Biodiversity of Life on Earth natural disasters, categorygrades35, earthquake, earth quake, earthquakes, tsunami, tsunamis, sunami, sunamis, volcano, volcanoes, volcanos, hazard, natural, disaster, disasters, magnet, crust, plates, tectonic Grades 3-5 Natural Disasters intro to thermal energy, categorygrades68, thermal, thermal energy, heat, phase change, phase changes, heating Grades 6-8 Intro to Thermal Energy sunlight warms the earth, categoryk2, sunlight, sun, sunlit, sun light, warming, warm, heating, heat, shine, shade Grades K-2 Sunlight Warms the Earth extreme weather solutions, categorygrades35, weather, engineering, engineer, hurricane, hurricanes, tornado, tornados, tornadoes, lightning, thunder, roof, heat wave, solutions, pattern, patterns, disaster, storm, storms Grades 3-5 Extreme Weather Solutions food webs: cycling of matter & flow of energy, categorygrades68, food web, food webs, food, matter cycle, cycle matter, cycling of matter, cycling of energy, energy flow, flow of energy, flow of matter, tropic Grades 6-8 Food Webs: Cycling of Matter & Flow of Energy habitats, categoryk2, habitat, habitats, environment, environments, surrounding, surroundings Grades K-2 Habitats how do we use food, categorygrades35, energy, food, transfer, transferred, foods, hunger, photosynthesis, digestion, digestive, hydroponic, hydroponics, eat, eating, sun Grades 3-5 How Do We Use Food properties of elements, categorygrades68, element, elements, periodic table, properties of elements, elemental, periods, groups, mendeleev, atomic number, atomic mass, electron, electrons, proton, protons, neutron, neutrons, density, reactivity Grades 6-8 Properties of Elements parts of a plant, categoryk2, plant, plants, flower, flowers, stem, stems, roots, root, leaves, leaf, external part, external parts, fruit, fruits, seed, seeds Grades K-2 Parts of a Plant wave properties, categorygrades35, wave, waves, amplitude, wavelength, energy, sound, transverse, longitudinal, particle, particles, wavelength Grades 3-5 Wave Properties water cycle (6-8 version), categorygrades68, water cycle, wattercycle, water cycles, hydrologic, hydrological, precipitation, evaporate, evaporation, condesate, condensation, water Grades 6-8 Water Cycle (6-8 Version) communication over distances, categoryk2, communication, light, sound, distance, communicate, comunicate, comunication, telephone, phone, morse, moorse, code Grades K-2 Communication Over Distances moon & its phases, categorygrades35, moon, phase, phases, tides, reflection, space, earth, moons, crater, craters, telescope, telescopes Grades 3-5 Moon & Its Phases maps of landforms, categoryk2, map, maps, physical map, topographic, topographical, mapping, landform, landforms, land form, land forms, mountain, mountains, forest, forests, geography Grades K-2 Maps of Landforms interactions of earth’s spheres, categorygrades35, earth, earths, earth's, sphere, spheres, geosphere, biosphere, atmosphere, biosphere, hydrosphere, recycle, recycling, rocks, rock, ice, clouds, weather, weathering, erosion, deposition, polution, pollution, green, sustainability, sustainable Grades 3-5 Interactions of Earth’s Spheres reproduction of living things, categorygrades68, reproduction, reproduce, mating, sexual, asexual, mate, mating, inherit, inheritance, gene, genes, allele, alleles, dna, genetic, genetics, genetic material, heredity, hereditary, offspring Grades 6-8 Reproduction of Living Things light reflection & vision, categorygrades35, light, lights, vision, see, seeing, reflect, reflection, eye, eyes, laser, light bulb, lens Grades 3-5 Light Reflection & Vision genes & mutations, categorygrades68, gene, genes, dna, genetic, genetics, genetic material, heredity, hereditary, offspring, mutation, mutations, chromosome, chromosomes Grades 6-8 Genes & Mutations classification of materials, categoryk2, sort, sorting, classify, classifying, classification, observable, properties, property, color, hardness, hard, texture, soft, softness, flexibility, grouping, absorbency Grades K-2 Classification of Materials particle nature of matter, categorygrades35, matter, particles, particle model, particle, atoms, molecules, gas, nitrogen, vacuum, physical, chemistry, physics, atom, molecule, atomic Grades 3-5 Particle Nature of Matter the solar system, categorygrades68, solar system, sun, mars, venus, jupiter, saturn, mercury, uranus, pluto, neptune, galaxy, star, stars, asteroid, asteroids, keiper, solar systems, telescope Grades 6-8 The Solar System natural resources, categoryk2, natural resources, natural resource, recycle, recycling, reduce, reuse, sustainable, sustainability, landfill, conserve, wood, trees, land, air, pollute, pollution Grades K-2 Natural Resources weather vs. climate, categorygrades35, weather, climate, atmosphere, pattern, patterns, rain, thermometer, anemometer, barometer, pressure, wind, temperature Grades 3-5 Weather vs. Climate photosynthesis & respiration, categorygrades68, photosynthesis, respiration, cellular respiration, sugar Grades 6-8 Photosynthesis & Respiration changing the shape of land, categoryk2, weathering, erosion, land, erosions, eroding, land form, landforms, shape of land, land shape, prevent, stop Grades K-2 Changing the Shape of Land animal group behavior, categorygrades35, group, groups, behavior, behaviors, animal, animals, migration, predator, prey, ant, life Grades 3-5 Animal Group Behavior rocks & minerals (including rock cycle), categorygrades68, rock, rocks, mineral, minerals, rock cycle, metamorphic, igneous, sedimentary, lava, magma Grades 6-8 Rocks & Minerals (Including Rock Cycle) reducing our impact on earth, categoryk2, human impacts, impact, recycle, recycling, reduce, reuse, three rs, 3 rs, waste, dump, dumping, three r's, 3 r's, landfill, conserve, land, air, pollute, pollution Grades K-2 Reducing Our Impact on Earth information transfer, categorygrades35, tech, technology, technologies, electric, electronic, electrical, communication, communicate, digital, cd, music, text, signal, signals, code, coding, program, programming, morse, pixel, pixels, radio, computer, transmit, microchip, pattern, patterns, computers, robots, robotics, computer, robot Grades 3-5 Information Transfer rock layers (geologic time), categorygrades68, rock, rock layer, rock layers, geologic, geology, geologic time scale, time scale. strata, stratum Grades 6-8 Rock Layers (Geologic Time) external animal parts, categoryk2, anatomy, animal parts, animal part, parts of an animal, tail, claws, skin, structure, structures, function, function, structure and function Grades K-2 External Animal Parts earth’s landscapes, categorygrades35, rock, layers, layer, landscape, landscapes, ancient, landscape, earth, earths, earth's, fossil, fossils, time, geologic, geology, bone, sharktooth, shark tooth, paleontology, silt, sedimentary, grand canyon, erosion, landform, landforms, land form, land forms, environment, environments Grades 3-5 Earth’s Landscapes heat: transfer of thermal energy, categorygrades68, heat, heating, heat transfer, burn, burning, fire, conduction, convection, radiation Grades 6-8 Heat: Transfer of Thermal Energy living things change their environment, categoryk2, change the environment, environmental change, beaver, dam, beaver dam, squirrel, prairie dog, meerkat, owl, maccaw, macaw Grades K-2 Living Things Change Their Environment animal & plant life cycles, categorygrades35, life cycles, life cycle, lifecycle, lifecycles, cycles of life, butterfly, frog, babies, mate, mating, reproducing, reproduction, grow, seed, seeds, egg, birth, born, growth, mate, plants, animals, life, flowers, fruit, pollination, pollen, larvae, germination, chrysalis, seedling, metamorphosis, butterflies Grades 3-5 Animal & Plant Life Cycles biotechnology, categorygrades68, dna, d.n.a., deoxyribonucleic acid, deoxyribo nucleic acid, genetic, genetic material, genetics, bio technology, biotech, biotechnologies, clone, cloning, artificial selection, breed, breeding Grades 6-8 Biotechnology timescale of earth’s events, categoryk2, erosion, time, timescale, time scale, time scales, earthquake, earth quake, earthquakes, volcano, volcanoes, fast, slow, quick, quickly, slowly, magnitude Grades K-2 Timescale of Earth’s Events water quality & distribution, categorygrades35, water, quality, distribution, ocean, oceans, lake, river, steam, runoff, run off, algae, water shed, watershed, watersheds, sediment, filter, filtration, biologist, marine, glacier, glaciers Grades 3-5 Water Quality & Distribution maintaining biodiversity, categorygrades68, biodiversity, tide pool, tidepool, diversity, biodiversity, keystone species, keystone, tropic, bioindicator, bioindicators, bioindication, bio indicator, keystones Grades 6-8 Maintaining Biodiversity animals need food, categoryk2, food, eat, eating, nutrients, animal, animals, need, needs, requirement, require, porcupine, monitor, lizard, monkey, wolf, dog, monkeys, lizards Grades K-2 Animals Need Food what is science? (3-5 version), categorygrades35, experiment, experimentation, science, scientist, engineer, engineering, evidence, practice, practices, method, scientific, control, controlled, astronomy, biology, chemistry, paleontology, evidence, claim, claims, variable, variables, inquiry, investigation, investigations, law, laws, theory, theories, hypothesis Grades 3-5 What Is Science? (3-5 Version) predicting natural disasters, categorygrades68, natural disaster, disaster, disasters, tornado, hurricane, tsunami, earthquake, volcano, tornados, hurricanes, tsunamis, sunami, sunamis, earthquakes, volcanos, earth quake, earth quakes Grades 6-8 Predicting Natural Disasters digital vs. analog signals, categorygrades68, digital, analog, electronics, electronic, binary, code, coding, record player, records, music, 1s and 0s Grades 6-8 Digital vs. Analog Signals newton’s laws of motion, categorygrades68, newton, law of motion, laws of motion, newton's law, newton's laws, motion, force, forces, 1st law, 2nd law, third law Grades 6-8 Newton’s Laws of Motion climate zones & ocean currents, categorygrades68, climate, climate zone, climate zones, ocean, ocean current, ocean currents, thermohaline, thermo haline, circulation, atmosphere, temperate, arctic, tropic, tropical, tropics, subtropical, subtropics, subtropic, conveyor belt, circulate Grades 6-8 Climate Zones & Ocean Currents air masses & weather fronts, categorygrades68, air mass, air masses, weather, weather front, cold front, warm front, stationary front, occluded front, atmosphere Grades 6-8 Air Masses & Weather Fronts intro to climate change, categorygrades68, climate change, carbon dioxide, melt, melting, temperature, temperatures, climate, fossil fuel, fossil fuels Grades 6-8 Intro to Climate Change natural resource distribution, categorygrades68, natural resource, natural resources, resource distribution, resources distribution, gold, coal, oil, natural gas, tectonic, continental, fossil fuel, fossil fuels Grades 6-8 Natural Resource Distribution human impacts on the environment, categorygrades68, population, human impact, human impacts, coal, oil, natural gas, plastic, plastics, fossil fuel, fossil fuels Grades 6-8 Human Impacts on the Environment the fossil record, categorygrades68, fossil, fossils, fossil record, fossil records, fossils record, evolution, dinosaur, dinosaurs, bones Grades 6-8 The Fossil Record how to be a scientist (college & careers), categorygrades68, scientist, career, college, graduate, graduation, scientists, university, chemist, biologist, geologist, paleontologist, astronomer, physicist Grades K-8 How To Be A Scientist (College & Careers) pythagorean theorem, categorygrades68, pythagorean theorem, pythagorean, theorem, therem, therum, pithagorean, triangle, traingles, a squared, a^2 Grades 6-8 Pythagorean Theorem whole number exponents, categorygrades68, exponent, exponents, gems, order of operation, order of operations, pemdas Grades 6-8 Whole Number Exponents angle sums (triangles & transversals), categorygrades68, transverse, transversal, angle, angles, degrees, angle sum, angle sums, angles sum, angles sums Grades 6-8 Premieres December 2021
Angle Sums (Triangles & Transversals) transformations: reflections & translations, categorygrades68, transformation, reflection, translation, transformations, reflections, translations, reflect, reflecting, translate, translating Grades 6-8 Premieres December 2021
Transformations: Reflections & Translations probability: single events, categorygrades68, probability, probability, event, events, change, changes, stats, statistics, statistical, probable Grades 6-8 Premieres December 2021
Probability: Single Events histograms & box plots, categorygrades68, histogram, histograms, box plot, box plots, histograph, histographs, whisker, whiskers, boxplot, boxplots, bucket, frequency Grades 6-8 Premieres December 2021
Histograms & Box Plots intro to algebraic expressions, categorygrades68, algebraic, algebraic equation, algebraic equations, algabraic, algabraic equation, algabraic equations, expression, expressions, expresion, expresions, algebra, algabra Grades 6-8 Premieres December 2021
Intro to Algebraic Expressions transformations: rotations & dilations, categorygrades68, transformation, rotation, dilation, transformations, rotations, dilations, rotate, dilate, transform, transforming, rotating, dilating Grades 6-8 Premieres December 2021
Transformations: Rotations & Dilations use all 4 quadrants of the coordinate plane, categorygrades68, coordinate, co-ordinate, cordinate, coordinates, co-ordinates, cordinates, plane, grid, grids, planes, quadrant, quadrants Grades 6-8 Premieres December 2021
Use All 4 Quadrants of the Coordinate Plane volume of cylinders, cones & spheres, categorygrades68, volume, cone, cones, sphere, spheres, cylinder, cylinders, cylander, cylanders Grades 6-8 Premieres December 2021
Volume of Cylinders, Cones & Spheres mean, median & mode, categorygrades68, mean, median, mode, average, distribution, graph, graphing, data, stats, staticistic, statistics Grades 6-8 Premieres December 2021
Mean, Median & Mode add & subtract with negative numbers, categorygrades68, negative, negative numbers, integer, integers, add, adding, addition, subtract, subtracting, subtraction Grades 6-8 Premieres December 2021
Add & Subtract with Negative Numbers graph proportional relationships and slope (y = mx + b), categorygrades68, graph, graphing, proportional, proportion, slope, slopes, sloping, mx + b, y = mx + b, y=mx + b, y=mx+b Grades 6-8 Premieres December 2021
Graph Proportional Relationships and Slope (y = mx + b) multiply & divide with negative numbers, categorygrades68, negative, negative numbers, integer, integers, multiply, multiplying, multiplication, divide, division, dividing Grades 6-8 Premieres December 2021
Multiply & Divide with Negative Numbers area & circumference of circles, categorygrades68, circle, circles, circumference, radius, diameter, diameters, pie, pi, 3,1, 3.14, 3.141, 3,1415, radius, radial, area Grades 6-8 Premieres December 2021
Area & Circumference of Circles 
