2. Jeopardy Mass and density More density properties Randomness Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy An easy first test

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4. $100 MASS AND DENSITY Which of the following statements is true about an object’s weight but NOT about its mass? a.It may vary depending on the object’s location. b.It is a measure of the amount of matter in the object. c.It is measured in kilograms (kg) or grams (g). d.It would be the same on the moon as it is on Earth.

5. $200 MASS AND DENSITY What kinds of changes in substances are always physical changes? a.changes of state from solid to liquid to gas and back b.changes that result in new substances being formed c.changes that change the identity of the substance d.changes that change the density of the substances

6. $300 MASS AND DENSITY In a graduated cylinder containing several liquid layers, the least dense liquid is found a.floating at the top.c.in the lightest colored layer. b.in the middle layer.d.settled on the bottom.

7. $400 MASS AND DENSITY Why is density considered a useful property for identifying matter? a.Different substances have the same densities. b.Density is unique to each substance. c.Density predicts whether objects float. d.Density varies at different temperatures

8. $500 MASS AND DENSITY How could you change the mass of an object? a.Move to another large body or moon. b.Add or take away some matter. c.Make Earth spin faster or slower. d.Change the object’s temperature.

9. $100 MORE DENSITY Why is freezing water to make ice considered a physical change? a. The ice has some new properties. b.The ice floats on water. c.The water changes its state. d.The water changes its identity

10. $200 MORE DENSITY Why will ice float on top of liquid water? a.Ice has a lower density than water. b.Ice has a higher density than water. c.Ice is a solid. d.Ice is colder than water.

11. $300 MORE DENSITY If you poured three liquids (that do not mix completely) into a beaker, how could you tell which one is the densest liquid? a.The liquid that is floating on top is the densest liquid. b.The liquid that settles to the bottom is the densest liquid c.The liquid with the deep red color is the densest liquid. d.There is no way to tell which liquid is densest from the description.

12. $400 MORE DENSITY What happens to a solid object with a density that is less than water when it is placed in water? a.The object sinks about halfway into the water. b.The object displaces a quantity of water greater than its volume. c.The object settles to the bottom of the water. d.The object floats on top of the water.

13. $500 MORE DENSITY Which of the following is NOT an example of a physical change? a.the shaping of a gold bar b.the melting of a Popsicle c.the explosion of fireworks d.the sanding of a piece of wood

14. $100 PROPERTIES What is the best way to tell if a chemical change has taken place? a.The matter changes color. b.A mixture separates into layers. c.The change is reversible. d.A composition changes.

15. $200 PROPERTIES Which of the following is a chemical property of matter? a.solubilityc.density b.volumed.reactivity

16. $300 PROPERTIES What makes characteristic properties useful to scientists? a.They can be either physical or chemical. b.They can be used to identify matter. c.They are easy to observe and measure. d.Sample size does not matter.

17. $400 PROPERTIES Which property of matter is a measure of the gravitational force? a.densityc.volume b.massd.weight

18. $500 PROPERTIES Melting crayons is an example of a a.physical property.c.chemical property. b.physical change.d.chemical change.

19. $100 RANDOMNESS What is formed when particles of two or more substances are distributed evenly among each other? a.compoundc.solution b.suspensiond.element

20. $200 RANDOMNESS Which physical property of matter describes the relationship between mass and volume? a.densityc.reactivity b.ductilityd.weight

21. $300 RANDOMNESS Malleability is an example of a a.physical property.c.chemical property. b.physical change.d.chemical change.

22. $400 RANDOMNESS Which of the following is not a physical property of matter? a.ductilityc.thermal conductivity b.colord.reactivity with water

23. $500 RANDOMNESS During physical changes, matter always retains its a.size. c.state. b.identity. d.texture.

24. $100 AN EASY FIRST TEST Why would molding clay be considered a physical change? a.The clay changes only its shape. b.The clay changes in composition. c.The clay changes only its state of matter. d.The clay changes its identity.

25. $200 AN EASY FIRST TEST What happens to matter during chemical changes? a.It retains its identity. b.The state of matter changes. c.Its composition changes. d.Only the form of the matter changes.

26. $300 AN EASY FIRST TEST a measure of the amount of matter in an object

27. $400 AN EASY FIRST TEST the amount of space occupied by an object

28. $500 AN EASY FIRST TEST the type of matter and its arrangement in an object

29. FINAL JEOPARDY How does a physical change differ from a chemical change? a.In a physical change new volumes are created. b.In a physical change new materials are produced. c.In a physical change the composition is unchanged. d.In a physical change the change is reversible.

30. Final Jeopardy Answer C

31. Answer MASS AND DENSITY A B More density C A B D C RANDOMNESS C A D B PROPERTIES D B D B EASY A C MASS VOLUME COMPOSITION