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# MEASURING VOLUME (teach)

Explains what volume is and how it is measured for elementary level students.

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### MEASURING VOLUME (teach)

1. 1. Measuring Volume<br />How much space?<br />By Moira Whitehouse PhD<br />
2. 2. We have learned that all matter<br />• takes up space<br />• has mass<br /> Mass is<br />the amount of matter in an object<br />Volume is<br />how much space an object takes up.<br />
3. 3. Now let’s look at how mass and volume are different.<br />Volume is more like size.<br />Mass is more like weight.<br />
4. 4. •Mass is different than size and volume.<br />This means that the sponge and the two rocks have a. the same volume or b. the same mass. <br />Yes, since the scale balances, they have the same mass.<br />The rocks in the right pan balance with the larger sponge in the left pan.<br />. <br />Do the two fossils and sponge have the same volume? <br />Which one has the greater volume?<br />The sponge has more volume than the two rocks.<br />
5. 5. Look at the two cans of soda pop—one is full Dr. Pepper and the other is full of Diet Coke. <br />Both cans have the same a. mass or b. volume. <br />Yes, both cans have the same volume. <br />Do you think they have the same mass? <br />
6. 6. Let’s put them on a balance scale and see.<br />Do the two cans of soda have the same mass? <br />The can of Dr. Pepper has more mass the the can of Diet Coke.<br />
7. 7. Back to volume--the amount of space that an object takes up. <br />How is it measured?<br />Volume is measured by seeing how much stuff (like a solid, gas, or liquid) it takes to fill a space or a container.<br />Scientists used a cubed meter for the standard size to describe “how much” space.<br />
8. 8. The box that the girl is sitting in has a volume of 1 cubic meter.<br />
9. 9. Remember, the meter is made up of 100 centimeters. If we make a cube measuring one centimeter on each side, we have a box shaped space.<br />
10. 10.
11. 11. The amount of space in this blue cube is one cubic centimeter (1 cc)<br />
12. 12. The amount of space in this blue cube is one cubic centimeter (1 cc)<br />This is the unit we usually use to measure how much space anything takes up.<br />
13. 13. The amount of space in this blue cube is one cubic centimeter (1 cc)<br />This is the unit we usually use to measure how much space anything takes up.<br />This shows how much space, not the shape of the space.<br />
14. 14. The amount of space in this blue cube is one cubic centimeter (1 cc)<br />This is the unit we usually use to measure how much space anything takes up.<br />This shows how much space, not the shape of the space.<br />Different shapes, same volume.<br />1 cc<br />1 cc<br />
15. 15. Let’s look at this once again. The blue cube below has a volume of 1 cc. The liquid in the spoon below has a volume of 1 cc. Same volumes but different shapes.<br />If you melted the solid blue cube, the liquid would exactly fill the 1 cc measuring spoon.<br />The amount of liquid in the measuring spoon shown is also called 1 milliliter (mL).<br />
16. 16. Here we see that one milliliter of a liquid in a syringe fits exactly into an empty cubic centimeter. <br />Therefore one milliliter and one cubic centimeter have the same volume—they take up the same amount of space. <br />
17. 17. When we describe the volume of an object or the volume of a space we are saying how many cubic centimeters it would take to fill that space.<br />For example, it takes 70 cubic centimeters to completely fill this paperclip box. <br /> What is the volume of the box?<br />
18. 18. The boxes volume is 70 cubic centimeters. It took 70 1 cm cubes to fill the box. <br />In this picture we see a single blue cube, what is its volume?<br />Yes, this cube has a volume of 1 cubic centimeter (1 cc)<br />
19. 19. The volume of this line of blue cubes is:<br />10 cubic centimeters<br />
20. 20. The volume of this square of blue cubes is:<br />100 cubic centimeters<br />
21. 21. The volume of this cube of blue cubes is:<br />
22. 22. Right, 10 cm x 10 cm x 10 cm = 1000 cubic centimeters.<br />It took one thousand of those blue centimeter cubes to completely fill this box.<br />And since 1 cc = 1 mL, the 1000 cc blue block should fit exactly inside an empty box labeled 1000 mL.<br />
23. 23. Let’s check it out.<br />
24. 24. Yes,a 1000 cc blockexactly fills this 1000 mL container. (Remember cubic centimeter {cc} and milliliter {mL} are two names for the same amount of volume)<br />
25. 25. And since 1 liter = 1000 mL, this plastic box should have exactly the same volume as this one liter bottle of Ginger Ale<br />
26. 26. And it does!<br />
27. 27. To measure the volume of liquids in the classroom, we have special tools called graduated cylinders, syringes and beakers. <br />The units we use to measure the volume of liquids are cubic centimeters (cc) and milliliters (mL). <br />
28. 28.
29. 29. Now it is time to measure some volumes of liquids.<br />What is the volume of the blue liquid?<br />How many blue 1 cm cubes melted into a liquid would it take to fill the graduated cylinder to this point?<br />mL<br />
30. 30. What is the volume of the blue liquid?<br />How many blue 1 cm cubes melted into a liquid would it take to fill the graduated cylinder to this point?<br />mL<br />
31. 31. What is the volume of the blue liquid?<br />How many blue 1 cm cubes melted into a liquid would it take to fill the graduated cylinder to this point?<br />
32. 32. What is the volume of the blue liquid?<br />
33. 33. What is the volume of the blue liquid?<br />
34. 34. So remember, in science, volume is how much space something takes up, not how loud your music is.<br />

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Explains what volume is and how it is measured for elementary level students.

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