An Exploration of the
Earth’s Tilt & Seasons
Use the freeware program Sun Clock for Windows and explore how the tilt of the Earth affects how much daylight and night we have each season.
Click here to download the free program
What Is The Shape Of The Earth?
A globe, Mercator map, golf tees, and some sunshine can be used to easily show the shape of our planet.
How Our Moon Has Phases
Use a ’ball-on-a-stick’ on any sunny morning when the waning crescent moon is visible to clearly show how moon phases occur.
Using Shadows To Determine Compass Directions
Shadows, sticks, and the sun can be used to tell
directions and time.
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Graphing The Changing Length of Day & Night
Graphing the length of day and the length of night throughout the year can reveal interesting patterns.
Shadows and Circumference
Measuring the Earth’s circumference can be done using shadows and angles. No way – yes way!
Just Ask Eratosthenes!
The 2001 Retrograde Loop Of Mars
This year Mars is one of three planets that are moving sdrawkcab. It is, however, the easiest one to observe.
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