Density Ws (alps)

Name _________________ Period ______ Density (ALPS) Define these words Mass Volume Density cm3

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Take a look at the two boxes below. Each box has the same volume. If each ball has the same mass, which box would weigh more? Why?

All density values in the following table are units of g/cm3

SOLIDS cork 0.24 mahogany 0.85 wax 0.9 ice 0.92 balsa wood 0.13 oak 0.72 hard coal 1.4 - 1.8 sugar 1.6 bone 1.6 concrete 2.3

LIQUIDS gasoline 0.68 octane 0.70 grain alcohol 0.79 wood alcohol 0.81 coconut oil 0.93 water, pure 1.00 water, sea 1.03 glycerin 1.26 chloroform 1.73 Mercury 13.6

GASES hydrogen 0.000 09 helium 0.00018 ammonia 0.00077 CO 0.00125 nitrogen 0.00126 air 0.0013 oxygen 0.00143 CO2 0.00198 chlorine 0.00321

glass 2.4 - 2.8 aluminum 2.7 copper 8.9 silver 10.5 lead 11.3 gold 19.3 platinum 21.5 1. What is the density of pure water (don’t forget units)? 2. What is the density of copper (don’t forget units)?

3. What is the density of CO2 (don’t forget units)? 4. a) name 2 solids that are less dense than water: b) name 2 liquids that are more dense than water: c) name 2 gases that are more dense than carbon dioxide:

5. If balsa wood were put into water would it float or sink? Why? 6. If concrete were put into chloroform would it float or sink? Why?

We are going to pretend that mass and weight are the same things in order to answer these questions. 7. Why are two units used when finding density? 8. The formula for Density is

= ________

9. What is the mass of the penny? ________ 10. What is the volume of the penny? ____________ 11. What is the density of the penny? __________ 12. What is the mass of the rock? _________ 13. What is the volume of the rock? ________ 14. What is the density of the rock? ________ 15. What is the volume of a block that is 5 cm in length, 2 cm in width, and 3 cm in height? 16. Measure the length, width, and height of a small board, then find its volume. Length ______ Width ______ Height ______ Volume _____ The formula for Density is

= ________

17. What is the Density of a rock if its mass is 9g and its volume is 3 cm3?

18. What is the Density of Water if its mass is 2g and its volume is 2 cm3?

19. What is the Density of air if its mass is 2g and its volume is 1 cm3? 20. Which one of the above things has the highest density? 21. Which one of the above things has the lowest density?