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Discover why the sky is blue and the sunset is red.
Turn an old CD into a spectroscope to analyze light.
Create a scale model of the earth-moon system using different-sized spheres.
Prove to yourself that Galileo was right.
Just spew it—build your own cyclic hot water fountain.
Why is the sky blue? That's a sticky question.
Measure the height of an object indirectly using your hand and a ratio.
Find the height of a tree, paper rocket or North Star.
Watch the rise and fall of hot and cold fluids.
Visualize the spectacular fluid motion of convection cells.
Explore the twinkling of stars by beaming a laser pointer over a hot plate.
Model the patterns of sunlight and shadow on Earth.
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Attribution: Exploratorium Teacher Institute
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