1. Matter 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27

2. 1. Label these states of matter?
answer
Solid Liquid Gas

3. 2. Which state of matter has a fixed shape and volume?
answer
Solid

4. 3. Which state of matter has a fixed volume but no fixed shape (it takes the shape of the container it’s placed in)?
answer
Liquid

5. 4. Which state of matter doesn’t have a fixed volume or shape (it expands to fill the container)?
answer
Gas

6. 5. Explain why cooling the hot ball allows it to fit through the hoop?
The ball has contracted. The particles which make it are closer together.

7. 6. What are the small particles called that make up all matter?
answer
ATOMS

8. 7. Describe how the particles are arranged in a solid?
answer
They vibrate and are arranged in rows with very small spaces between them.

9. 8. Which state of matter has small spaces between the particles but is NOT arranged in neat rows?
answer
Liquid

10. 9. What describes particles in a liquid sliding over each other?
answer
FLOW

11. Which state of matter has particles which constantly move about and have big spaces between them?
answer
GAS

12. 11. Which state of matter has the most energy?
answer
Gases have the most energy
Solids have the least energy

13. 12. Which state of matter can be compressed? Why?
answer
Gases
Because they have large spaces between molecules

14. 13. Can solids be compressed? Explain you answer.No
Because there are only small spaces between the particles

15. 14. Can liquids be compressed? Explain you answer.No
Because there are only small spaces between the particles

16. 15. What will happen to the total volume when these are mixed? Why?
The volume will decrease. The small particles fit into the gaps between the large particles

17. 16. Explain why heating the ball stops it fitting through the hoop?
The ball has expanded. The particles which make it are further apart.

18. 17. What is diffusion?
answer
The movement of particles from a region of high concentration to a region of low concentration

19. 18. Which state of matter diffuses easily?
Gases diffuse easily
Liquids less quickly
Solids DO NOT diffuse easily

20. 19. Which word is used to describe a solid changing into a liquid?
answer
Melting

21. 20. What happens at melting point?
answer
A solid changes into a liquid

22. 21. Which word is used to describe a liquid changing into a gas?
answer
Evaporation

23. 22. What happens at the boiling point of a substance?
answer
It changes from a liquid to a gas.

24. 23. Which term is used to describe a substance changing from a liquid to a solid?
answer
Freezing

25. 24. What do you call the temperature at which a substance changes from a liquid to a solid?
FREEZING POINT

26. 25. What will happen to a substance as you heat it?
It EXPANDS

27. 26. What happens when a substance expands?
The particles move further apart

28. 27. Explain why the bimetallic strip bends when heated?
The two metals expand at different rates