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In this space science activity, learners work together to create a human-powered orrery to model the movements of the four inner planets.

In this activity, learners explore a scale by comparing objects, which look similar but have different weights. Learners predict and then measure the weights of various objects using a scale.

Using information from the My Place in Space lithograph, learners write and/or draw a postcard to friends and family as if they had gone beyond the interstellar boundary of our Solar System, into the

In this activity, learners place cards featuring biological structures in order by their relative size from largest to smallest.