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

This lesson will helps learners answer the question: How does the bombardment of micrometeoroids make regolith on the moon?

In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.

This guided inquiry three-part activity engages learners in thinking about the mechanism of natural selection by encouraging them to formulate questions that can be answered through scientific investi

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.