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In this activity, learners make "solar cookies," edible models of the Sun's outer layers using sugar cookies and toppings.

Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?

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

In this cooperative learning activity, learners visit ten stations and are challenged to think critically about various conservation questions and issues.

Learners follow directions to construct a solar oven that really cooks! The solar oven uses aluminum foil to reflect sunlight into a cooking chamber, which is painted black.

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.