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In this activity, learners actually feel the difference in energy required to light two different types of light bulbs: incandescent light and LEDs.

$5 - $10 per group Ages 8 - 14 5 to 10 minutes
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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

$1 - $5 per student Ages 8 - 14 5 to 10 minutes