Sunspots are "dark" spots on the surface of the sun.
Here's how to show students why they appear dark.
Our solar system drawn to scale on an overhead projector scroll.
The model is drawn with the distances between objects to scale (not the sizes of objects).
A simple and easy way to show your students how parallax works!
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A neat computer simulation of galactic formation.
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A "reactor" of mousetraps and golf balls provide
an intense demonstration of a runaway nuclear process!
Watch Video:
Study Science @ SMU!
A podcast that reviews the
Voyager Golden Record!
