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In this outdoor activity and observation game, learners hunt for a variety of textures, colors, odors and evidence of organisms in the activity site.

This is a classic exercise for visualizing the scale of the Solar System.

Lakes, streams and other freshwater bodies are a habitat for lots of living things, big and small.

How do scientists measure how clear or murky water in a lake is? How does water clarity (clearness) affect what lives in the lake?

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

In this activity, learners set up a night time insect observation station with a light and sheet.

In this activity, learners make their own Sun tracker to explore how ancient civilizations around the world studied the Sun.