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In this activity, learners make pykrete by freezing a mixture of water and a material like cotton wool, grass, hair, shredded paper, wood chips, or sawdust.

This activity shows you how to make amazing crystal spikes using Epsom salt and the sun.

In this activity on page 24, learners perform experiments to examine whether or not trash can float, blow around, or wash away.

This activity gets learners looking at 6-sided shapes in nature, including the cells of a beehive, as well as other shapes.

In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.