1. Matter Test Review *Test Tomorrow*

2. Let’s say liquid A has a density of 50 g/cm3 and liquid B has a density of 28 g/cm3. What do you think would happen if you poured liquid B into a cup of liquid A? a. liquid B would sink b. liquid B would dissolve c. the two liquids would react d. liquid B would float

3. Which of the following statements refers to a physical property of a substance? a. acids are corrosive a. acids are corrosive b. zinc metal reacts with an acid to b. zinc metal reacts with an acid to produce hydrogen gas c. carbon combines with oxygen to form carbon dioxide d. the density of water is 1 g/cm3

4. What is the best reason as to why the scientific method is used to carry out experiments? a. so that non-scientific people understand it. b. so that the experimenter does not get confused. c. so the experiment can be repeated by others.

5. Every chemical or physical change in matter includes a change in a. volume b. velocity c. energy d. mass

6. In what way would you calculate density? a. volume/mass b. mass/volume c. volume x mass d. mass x volume

7. On a hot day, which change in state causes water to form on the outside of a cold soda can? a. evaporation b. boiling c. condensation d. melting

8. What would happen to water’s density if its volume was changed by half? a. it would decrease by half b. it would stay the same c. it would increase by half d. it would fluctuate

9. Which of the following is an example of a physical change? a. burning down your house b. melting ice cream c. heating sugar to form caramel d. both a and b

10. What is a compound? a. the smallest particle of a nucleus b. a combination of two or more atoms c. a negatively charged particle d. a combination of two or more elements

11. If I change the amount of sunlight, then the plant’s growth will increase. Identify the independent variable. a. amount of sunlight b. the plant c. the plant growth d. amount of water given to the plant

12. How can you measure the volume of an irregular object like a pencil? a. with a graduated cylinder b. with a ruler c. with a triple beam balance d. with a tape measure

13. Which of the following is a compound? a. gold b. carbon dioxide c. silver d. actinium

14. If I change the amount of sunlight, then the plant’s growth will increase. Identify the dependent variable. a. amount of sunlight b. the plant c. the plant growth d. amount of water given to the plant

15. Which liquid has the lowest viscosity? a. honey b. caramel c. soda d. glue

16. The unit of measurement for mass is a. gram b. liter c. milliliter d. meter

17. If you toss a peanut into a pitcher of ice tea and it floats to the bottom, what could you say about the ice tea’s density? a. it’s density is greater than a peanut b. it’s particles are very far apart c. it’s density is less than a peanut d. not enough information

18. A sample of lead has a mass of 22 grams and a volume of 11 cm3. What is the density of the lead? A sample of lead has a mass of 22 grams and a volume of 11 cm3. What is the density of the lead? a. 10 g/cm3 b. 2 g/cm3 c. 121 g/cm3 d. 242 g/cm3

19. What method is used to find the volume of an irregular shaped object? a. scientific method b. water displacement c. find it method d. scale method

20. In a physical or chemical change, mass is never a. lost b. gained c. controlled d. both a and b