Changes

Alternative energy resources (view source)

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can with black paper. Secure the paper with tape or rubber bands. This helps the can absorb

heat.

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2. Use kabob stick to punch a hole through

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2. Use kabob stick to punch a hole through

one of the long sides of the shoebox. The

hole should be about 2” from the back of the

box. This is for the thermometer.

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3. You may have to add several layers of

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3. You may have to add several layers of

cardboard inside. This lets the thermometer reach the inside of the can. It also adds

insulation. Try wrapping the cardboard with aluminum foil to reflect heat onto the can.

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4. Attach another reflector with tape. Puncture the reflectors with kabob sticks, and

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4. Attach another reflector with tape. Puncture the reflectors with kabob sticks, and

and slide them through the reflectors. use the sticks

to hold the reflectors open.

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6. Try using a black-painted can and a plain can to see how

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5. Try using a black-painted can and a plain can to see how

fast each heats up. Make a chart to record your results.

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5. Lay the shoebox on its side in the sun. You can lean it against a wall to face the

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6. Lay the shoebox on its side in the sun. You can lean it against a wall to face the

sun. Fill the soda can about 3/4 full with water, and place it in the box. Insert the

thermometer, and record the temperature. record the temperature

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