Question: Choose your answer.

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.
My Answer: The exposed metal rusts.

Question: Choose your answer.

Where would nitrogen most easily be found in the nitrogen cycle?

OPTIONS:
- in animal waste
- in drinking water supplies
- in underground mineral deposits
- in carbon dioxide released by factories into the atmosphere
My Answer: in animal waste

Question: Choose your answer.

Some machines can remove the salt that is in seawater. How does removing salt from seawater most help people?

OPTIONS:
- provides useable drinking water
- creates cleaner water for rivers
- enables more fish to live in lake water
- allows more plants to grow along rivers
My Answer: provides useable drinking water

Question: Choose your answer.

Minerals are formed by which process?

OPTIONS:
- magma cooling
- fault lines moving
- metamorphosis
- sedimentation
My Answer:
magma cooling