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Measure Mass & Volume (Metric System)
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What you will learn from this videoWhat you will learn
- We’ll learn how to use the metric system to measure mass and volume.
- How we can use math operations with these measurements.
- We’ll see that this knowledge can help us cook food, plant seeds, and even make a chemical reaction!
- Discussion Questions
Before Video
What is measurement?ANSWERMeasurement is something we use to find the size or amount of something.
I have measured flour for a cake in cups. I have measured wood for a box that I made in centimeters.
Centimeters are used to measure the length of objects. Meters are used to measure lengths that are longer, such as the length of a classroom.
You use a ruler marked in centimeters. You line the 0 point on the ruler with one end of the object. You look at the other end of the object to see what measurement it matches up with on the ruler.
If I don't measure the length of wood exactly before I cut it, the pieces may not fit together.
After Video
What is mass and what are some of the units we use in the metric system to measure mass? ANSWERMass is a measure of how much matter an object contains. We use grams and kilograms to measure mass.
Liquid volume is a way to measure the amount of liquid by giving a measurement of how much space it occupies. We use liters and milliliters to measure liquid volume.
An elephant is large and contains a lot of matter. If I used grams, the number of grams would be gigantic. If I use kilograms, I will get a number of kilograms that is easier to work with.
The amount of water in an eyedropper is very small so you would want to use a milliliter which is a small unit of liquid volume. A liter is a unit that would be too big.
The scientist needs to subtract the amount of salt she has already put into the container from the total amount of salt she needs to put into the container. 400 – 175 = 225. She needs to put 225 more grams of salt into the container.
- Vocabulary
- Milliliter DEFINE
A unit used to measure liquid volume.
- Gram DEFINE
A unit used to measure mass.
- Mass DEFINE
A measure of how much matter an object contains.
- Volume DEFINE
A measure of how much space an object or liquid takes up.
- Beaker DEFINE
A cylindrical container used in science.
- Kilogram DEFINE
A larger unit used to measure mass. Every 1,000 grams can be grouped into 1 kilogram.
- Liter DEFINE
A larger unit to measure volume. Every 1,000 milliliters can be grouped into 1 liter.
- Metric System DEFINE
A system of measurement that uses milliliter, liter, gram, and kilogram as measuring units along with other measuring units.
- Milliliter DEFINE
- Reading Material
- Practice Word Problems
- Practice Number Problems
- Lesson Plan
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Level 1
What unit would you use to measure the mass of a hippopotamus, grams or kilograms? Why?
Level 2
A dog bone has a mass of 2 kilograms. What is the mass of 7 dog bones?
Level 3
The liquid volume in Bucket A is 5 times the volume of liquid in Bucket B. The volume of liquid in Bucket A is 20 liters. What is the volume of liters in Bucket A?
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