The model shows how the surface of Earth is heated at the equator using a light shining on a piece of graph paper.

Question

Information
A model of a light shining down on a piece of graph paper. The light shines directly down onto the graph paper and makes a circle of lighted squares.

Question
How can students change the model to ,begin emphasis,best,end emphasis, show the heating of Earth at the poles?

A.
Move the light closer to the paper.

B.
Move the light farther away from the paper.

C.
Shine the light at an angle to the paper from the same distance.

D.
Turn the light to a brighter setting and move it closer to the paper.

E.
Turn the light to a dimmer setting and shine it from the same distance.

Answer 1

B. Move the light farther away from the paper.

To demonstrate the heating of Earth at the poles in the model, moving the light farther away will simulate the sun's rays being more spread out and less intense at the poles due to the angle of the Earth's axis. This will show how the poles receive less direct sunlight and therefore are cooler compared to the equator.