In gym class a student kicks a soccer ball high into the air. As the ball goes upward, which type of energy is increasing?
A: potential energy

Which of the following is most likely to make a rock crack and crumble?
A: water freezing in a crack in the rock

A person in a dark room looking through a window can clearly see a person outside in the daylight. But a person outside cannot see the person inside. Why does this happen?
A: There is not enough light being reflected off the person in the room.

Which of these is an inherited behavior?
A:
a spider spinning a web