Question

1.
(02.02 LC)

Match the term with the definition. (4 points)
1.
Sublimation
2.
Evaporation
3.
Freezing
4.
Melting
a.
A phase change from a liquid to a gas
b.
A phase change from a solid to a liquid
c.
A phase change from a solid to a gas
d.
A phase change from a liquid to a solid
2.
(02.02 MC)

Burning wood represents a chemical change. (2 points)

True

False
3.
(02.02 LC)

Match the term with the definition. (4 points)
1.
Flammability
2.
Reactivity
3.
Heat of combustion
4.
Compressibility
a.
Measure of how much the volume of matter can decrease under pressure
b.
How easily a substance can be set on fire
c.
Measure of how much heat is given off when a substance is burned
d.
The readiness of a substance to undergo a chemical change
4.
(02.02 MC)

Match the term with the example that shows its definition. (4 points)
1.
Compressibility
2.
Toxicity
3.
Flammability
4.
Heat of combustion
a.
Gas is squeezed into a small container
b.
Gasoline catches fire
c.
The burning of coal releases heat
d.
High lead levels in a lake kill fish
5.
(02.02 MC)

The explosions that take place during a fireworks show are an example of which of the following? (2 points)

Image of fireworks exploding in air

Chemical change

Chemical property

Physical change

Physical property
6.
(02.02 MC)

A plant grows three inches in a month. Why is this a physical change? (2 points)

The size of the plant has changed.

The plant makes energy from the sun to grow the flower.

Heat of combustion from the sun helps grow the flower.

Special structures in the plant react with sunlight to make the flower.
7.
(02.02 MC)

When a cold beverage is placed outside, the gas particles cling to the side of the can and become water droplets. This is due to which change of state? (2 points)

Condensation

Evaporation

Melting

Freezing

Answer 1

Here are the answers:

1. Match the term with the definition:
- 1. Sublimation - c. A phase change from a solid to a gas
- 2. Evaporation - a. A phase change from a liquid to a gas
- 3. Freezing - d. A phase change from a liquid to a solid
- 4. Melting - b. A phase change from a solid to a liquid

2. Burning wood represents a chemical change.
- **True**

3. Match the term with the definition:
- 1. Flammability - b. How easily a substance can be set on fire
- 2. Reactivity - d. The readiness of a substance to undergo a chemical change
- 3. Heat of combustion - c. Measure of how much heat is given off when a substance is burned
- 4. Compressibility - a. Measure of how much the volume of matter can decrease under pressure

4. Match the term with the example that shows its definition:
- 1. Compressibility - a. Gas is squeezed into a small container
- 2. Toxicity - d. High lead levels in a lake kill fish
- 3. Flammability - b. Gasoline catches fire
- 4. Heat of combustion - c. The burning of coal releases heat

5. The explosions that take place during a fireworks show are an example of which of the following?
- **Chemical change**

6. A plant grows three inches in a month. Why is this a physical change?
- **The size of the plant has changed.**

7. When a cold beverage is placed outside, the gas particles cling to the side of the can and become water droplets. This is due to which change of state?
- **Condensation**