1. MATTER REVIEW Number your paper from 1 to 25. Answer the questions on your paper. Check your answers with a friend.

2. Matter takes up space. This is its ___ 1. a) area b) volume c) density d) none

3. ___ is the amount of matter that an object contains. 2. a) area b) volume c) density d) none

4. This is the upward force of a liquid or gas that keeps things afloat. 3. a) buoyancy b) floatability c) density d) none

5. Characteristics you can observe are called ___. 4. a) mixtures b) compounds c) properties d) phenotypes

6. The 3 states or phases of matter are _, _, or _. 5.

7. This is a unit to measure mass. 6. a) miles b) Cubic centimeters c) dollars d) grams

8. Length times width is one way to find the __ of a flat surface. 7. a) mass b)density c) area d) volume

9. The ___ of an object is measured in cubic units of measurement. 8. a) volume b) mass c) area d) density

10. In the _____ system, length is measured in meters, mass in grams, and capacity in liters. 9.

11. ___ is a measurement of the mass of matter packed in a given volume. 10. a) volume b) mass c) area d) density

12. __ are the smallest particles of an element. 11. a) molecules b) atoms c) electrons d) metals

13. A substance made up of only one atom is a(n) ___. 12. a) element b) compound c) molecule d) mixture

14. The P____ Table lists all of the known elements. 13.

15. The atomic number stands for the number of __ in the nucleus of the atom. 14. a) atoms b) genes c) electrons d) none

16. The ___ ___ is the number of protons and neutrons in the nucleus of an atom 15. a) Atomic number b) Atomic mass c) Atomic density d) All of the above

17. In a ___ two or more types of matter are mixed together with each keeping its own properties. 16.

18. A mixture that is blended completely so that you cannot see each substance is called a ___. 17. a) compound b) mixture c) solvent d) solution

19. A __ uses the property of size to separate a mixture. 18. a) colander b) strainer c) filter d) All of the above

20. When using ___ to separate a mixture, the liquid goes into the air and the solid is left behind. 19. a) evaporation b) filtration c) properties d) The water cycle

21. In a ___ two or more elements come together with each losing its own properties. 20. a) mixture b) element c) compound d) none

22. Adding or removing ___ can change the physical state of matter. 21. a) energy b) atoms c) elements d) grams

23. In a ___ change you start with one kind of matter and end with a different kind (burning for instance). 22. a) compound b) physical c) element d) chemical

24. True or False All chemical changes involve taking in or giving off energy. 23.

25. Table salt (NaCl) is a compound of __ & __. 24. a) Hydrogen and oxygen b) Sodium and chlorine c) Nadium and chlorine d) none

26. __ is a compound of Carbon+Hydrogen+ Oxygen. 25. a) sugar b) Table salt c) water d) air