1. Unit 2 Study Session

2. Which of these is NOT matter? 1. Kite 2. Air 3. Heat 4. Apple

3. Which is an example of a physical change? 1. Cutting paper 2. Dying your hair 3. Roasting hot dogs 4. Fireworks

4. Which is an example of a chemical change? 1. Spreading butter 2. Throwing a ball 3. Slicing bread 4. Digesting Food

5. Which best describes a tossed salad? 1. Element 2. Mixture 3. Compound 4. Solution

6. Which of the following is an element? 1. Carbon dioxide (CO2) 2. Sodium chloride (NaCl) 3. Air (C, N, O) 4. Gold (Au)

7. Dissolving sugar in water is… 1. Solubility 2. Physical Change 3. Chemical Change 4. Both (1) and (2)

8. States of matter change by adding or removing… 1. Atoms 2. Matter 3. Energy 4. Particles

9. A compound is… 1. Chemically combined 2. Physically combined 3. A pure substance 4. Found on the periodic table

10. You slice a loaf of bread. What happens to the mass? 1. Mass goes up 2. Mass goes down 3. Mass stays the same 4. Mass changes in an hour

11. A ping pong ball floats. What term describes floating and sinking? 1. Density 2. Gravity 3. Weight 4. Volume

12. Gravitational force is… 1. Matter 2. Volume 3. Weight 4. Mass

13. Amount of space taken up is…. 1. Matter 2. Volume 3. Weight 4. Mass

14. Water on the outside of a glass of ice water… 1. Freezing 2. Vaporization 3. Condensation 4. Sublimation

15. A substance losing energy and becoming organized and compact… 1. Freezing 2. Vaporization 3. Condensation 4. Sublimation

16. How many variables are in an experiment? 1. None 2. One 3. Two 4. Three

17. Which variable is the test (manipulated variable) 1. Independent 2. Dependent 3. Control 4. Scientific