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In this activity, learners use an astrolabe to measure the altitude of objects. Learners will first practice taking measurements by measuring the altitude of trees and buildings.

$1 - $5 per student Ages 6 - 14 1 to 4 weeks
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.

$1 - $5 per group Ages 6 - 14 2 to 4 hours
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In this activity, learners will measure the length of their shadow from the Sun and compare it three to four months later.

free Ages 6 - 14 1 to 12 months
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In this activity, learners observe the moon each night for a month and draw their observations in a Moon Watch Log.

1 cent - $1 per student Ages 6 - 14 1 to 4 weeks