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In this activity, learners are challenged to lift a floating ice cube out of a glass of water using just one end of a piece of string.

1 cent - $1 per student Ages 6 - 14 Under 5 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