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Weather Scouts Experiment
Part 1
Materials Required:
1. Globe, or a large ball
2. Black construction paper, or a dark table top
3. A bottle top, similar to those found on 20 ounce soft drinks
4. Black marker or pen
5. Flashlight

Procedure:
1. If you are using a globe on a stand, go on to step 8
2. If a ball is being used however, find the top and bottom of the ball. Use an ink pen, marker, tape or any marking method you prefer to mark a spot on the ball.
3. If you have a dark table-top go on to step 4. Otherwise, place black construction paper on a table-top where you plan to conduct the experiment.
4. Place your bottle top (top down) somewhere in the middle of the black surface.
5. Place a dark mark on the ball.
6. Balance the ball on the bottle top, with the dark mark inside the cap.
7. Place another dark mark on the ball at the very highest point.
8. Close the shades and turn off all lights in the room.
9. Shine the flashlight at the side of the globe/ball from about 2 feet away. Aim the flashlight at the center of the ball/globe and hold the light in this position while someone else follows step 10.
10. Where is the light shining most brightly on the ball? Where is the light more dim?

Part 2.
Additional Materials:
Single hole-punch
Black construction paper

11. Cut the piece of black construction paper into an 8-inch square.
12. Use the hole-punch to place several holes in the 8-inch square.
13. Hold the piece of paper about 1 foot away from the ball/globe.
14. Hold the flashlight a few inches away from the piece of paper and shine it through the holes at the ball/globe.

Results
You should be able to observe smaller brighter spots of light across the middle of the ball/globe. Toward the top and bottom of the ball/globe larger but less bright spots of light should be found.

This represents how the light from the sun covers more area near the poles than it does at the equator. Because the light is more concentrated at the equator, it is hotter there.

 

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