2. Ch. 2 Sec. 1-3 Matter and Energy Matter has mass and volume Matter is made of atoms Matter combines to form different substances Different States of Matter 100 200 300 400 500

3. Texture, shape, size, and color are all examples of... Physical Properties

4. True or false. When the state of matter change, it is considered to be a chemical change. False; only the arrangement of the atoms changes.

5. Density describes the relationship between a substance’s A.matter and mass B.mass and volume C.volume and are D.temperature and mass B. Mass and Volume

6. What is the formula to determine density? Mass divided by volume (m/v)

7. The only TRUE indication that a chemical change has taken place is... A new substance is being formed!

8. Name ONE of the FIVE indicators that a chemical change has taken place. 1.Color Change 2.Formation of a gas 3.Formation of a solid 4.Production of an odor 5.Temp. change

9. What is the process in which a solid becomes a liquid?. Melting

10. What are the two processes in which a liquid becomes a gas? Evaporation and Boiling

11. How do evaporation and boiling differ? A.In evaporation, there’s a formation of gas. B.In boiling there’s a formation of gas. C.In evaporation, a gas becomes a liquid D.In boiling, a gas becomes a liquid. B. In boiling, there’s a formation of gas

12. How do the freezing point and melting point of a substance relate? They are the same temperature!

13. What is the process in which a solid changes directly into a gas? Sublimation

14. What is the boiling point of water? 100 degrees Celsius or 212 degrees Farenheight

15. What is the process in which liquid becomes a solid is known as Freezing

16. __________ is the measure of how much of a substance dissolves in a given volume of a liquid. Solubility

17. True or false. You should always use your five senses to help you identify a substance. FALSEEEEEE!! AHHH

18. What process is this picture depicting? Melting

19. What is the unit used for density? g/cm cubed

20. Whether a substance is a solid, liquid, or gas depends on how close its atoms are to one another and... How free the atoms are to move

21. True or False. Particles in a liquid of any temperature will move at the same rate. FALSE. They will move faster at higher temperatures.

22. FALSE. Many items may have the same densities. True or False. You can identify a substance’s identity just based on its density.