Matter Quiz Review
1. What happens to the particles in matter as the temperature increases?
Answer: The particles move more quickly (movement increases)
2. Describe the state change of melting.
Answer: Melting occurs when a solid changes into a liquid.
3. How is a molecule formed?
Answer: A molecule is formed by the combination of 2 or more atoms.
4. Define “closed system.”
Answer: A closed system is a contained or isolated environment without influence or interaction with outside environments.
5. A liquid becomes a gas. What state change is this?
Answer: Evaporation
6. When a solid (ice) melts into a liquid (water) in a closed system, what happens to the mass of the water?
Answer: The mass of the water is conserved.
7. What happens to the particles in matter as the temperature decreases?
Answer: The particles move more slowly (movement decreases)
8. Describe the state change of condensation.
Answer: Condensation occurs when a gas changes into a liquid.
9. List the 4 states of matter.
Answer: The 4 states of matter are solid, liquid, gas, and plasma.
10. Define “mass.”
Answer: Mass is the amount of matter in an object.
11. Illustrate how particles are arranged in a solid.
12. Illustrate how particles are arranged in a liquid.
13. Illustrate how particles are arranged in a gas.
14. Look at the diagram to the right. What happens during sublimation?
Answer: A solid changes into a gas.
15. Look at the diagram to the right. What happens during deposition?
Answer: A gas changes into a solid.
16. Describe an example of melting.
Possible answer: A solid ice cube changes into liquid water as heat is added.
17. Describe an example of freezing.
Possible answer: Liquid water changes into solid ice as cold is added.
18. Describe an example of condensation.
Possible answer: Water vapor (gas) turns into liquid water as cold is added.
19. Describe an example of evaporation.
Possible answer: Liquid water turns into water vapor (gas) as heat is added.
20. Why do different substances have different melting and freezing points?
Answer:They have different melting and freezing points because they are made of different molecules.