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In this activity (page 11 of PDF), learners compare the air pressure within a dark and a light bottle both heated by the sun, and discover that solar energy can be collected and stored in many ways


$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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This activity about density provides instructions for making a miniature "lava lite" with just salt, oil, water, and food coloring.

1 cent - $1 per student Ages 4 - 8 10 to 30 minutes