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4th Grade Science Videos & Lessons. Try it free.

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Top 4th Grade Lessons

mushroom rocks are a great example of erosion

Weathering & Erosion

The Earth’s surface gets broken down through weathering. Small pieces of the Earth get moved through erosion. The small pieces are deposited somewhere else through a process called deposition.

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scientist lifts a weight to demonstrate use of muscles

Human Body Systems

The human body is made up of multiple interacting systems. We will learn about the circulatory, digestive, respiratory and muscular systems. It takes ALL of your body systems working together to help living things survive.

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baseball collision with a bat in slow motion

Collisions

Energy is the ability to make things happen. A moving object transfers energy when it comes in contact with another object. Making an object faster or heavier results in more energy transfer. In a collision, some energy is converted into sound and heat.

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diagram of a water wave and its wavelength

Wave Properties

Waves are one way energy is moved from place to place. Amplitude is the height of the wave. Wavelength is the distance between wave peaks. The sound we hear is a type of wave that travels through the air.

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scientist explains the structure and function of living things for kids

Structure of Living Things

All plants & animals have structures that help them survive. Each structure has a specific function. Animal structures may appear similar or different depending on where they live.

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diagram of how light is sensed by the eyes and the signal travels to the brain

Brain Processing of Senses

Information collected through senses is processed in the brain. Information travels to and from the brain through the nervous system. Animals use sensory information to guide their actions and help them survive.

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sparks fly when energy is transferred to flash paper

Energy Transfer

Energy can be converted from one form to another. Electricity can transfer energy from place to place. Light, sound and heat also transfer energy.

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scientist demonstrates the burning of renewable energy for kids

Renewable vs. Nonrenewable Resources

Fossil fuels are sources of energy made from prehistoric plants and animals. Non-renewable energy comes from sources that could eventually run out. Renewable energy comes from sources that can be easily replenished. Renewable energy includes sunlight, wind and water power.

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scientist and kids reflect laser light off a mirror

Light Reflection & Vision

Light travels in a straight line and reflects off of things. We can see because light reflects off objects and enters our eyes. Our eyes do not produce light, they only detect it.

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morse code is used to transfer a signal

Information Transfer

Patterns are used to communicate information electronically. Text and images are transferred through a pattern of 1’s and 0’s. Patterns of 1’s and 0’s are sent and received by microchips in our devices. Music is also transferred through 1’s and 0’s, in both CDs and music players.

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lava erupts from a volcano in a natural disaster

Natural Disasters

Earthquakes, tsunamis and volcanoes are a result of natural processes. Earthquakes and volcanoes occur in patterns on Earth’s surface. They are mainly found along the boundaries between oceans and continents. Humans cannot eliminate these hazards, but we can take steps to reduce their impact.

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scientist and kids exploring ancient landscapes

Earth’s Landscapes

Rock layers provide evidence of Earth’s landscapes from the past. The oldest rock layers are at the bottom and the newest layers are at the top. The location of fossils in rock layers provides evidence of earth’s past landscapes.

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scientific demonstration of light painting

What Is Science? (3-5 Version)

Science is the process of learning about the natural world through observation and experimentation. The more evidence we have about a theory the more confident we are about it. You must be willing to change your mind based on new evidence. Many things around us appear to be science but are not.

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