Input: Answer this question:
Base your answer on the information below and on your knowledge of science. A baseball strikes the roof of a car and dents it. The paint on the roof begins to crack and chip, exposing the metal. The exposed metal on the roof rusts, eventually causing a small hole in the roof. Which event is a chemical change?
OPTIONS:
- The baseball strikes the roof.
- The roof of the car dents.
- The paint cracks and chips.
- The exposed metal rusts.
Answer: The exposed metal rusts.

*Question*: Which characteristic is found ONLY in mammals? OPTIONS:
- eyes that detect color
- glands that make milk
- skin that absorbs oxygen
- bodies that are protected by scales
*Answer*: glands that make milk

question:
Hydrochloric acid is added to a beaker containing a piece of zinc. As a result, zinc chloride is formed and hydrogen gas is released. This is an example of
OPTIONS:
- a chemical reaction
- a physical change
- photosynthesis
- evaporation

answer:
a chemical reaction

[Q]: Which statement correctly describes why there are fewer than 24 hours of daylight in Alaska during each day in April?
===
OPTIONS:
- Earth's rotation slows during the day.
- Earth's rotation slows during the night.
- Earth's rotation causes both day and night.
- Earth's tilt on its axis causes both day and night.
****
[A]: Earth's rotation causes both day and night.

question below:
Laura adds 50 mL of boiling water to 100 mL of ice water. If the 150 mL of water is then put into a freezer, at what temperature will the water freeze?
OPTIONS:
- 0C
- 15C
- 37C
- 50C
answer below:
0C

question below:
The students were told that the net applied force from the engine was the same for each vehicle tested. Based on this information, which vehicle had the greatest acceleration (a = F/m)?
OPTIONS:
- vehicle 1
- vehicle 2
- vehicle 3
- vehicle 4
answer below:
vehicle 1