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Have your kids noticed how much bigger the moon looks when it's low in the sky? What's going on? The moon isn't changing size or getting closer: this is actually just an optical illusion. The moon takes up just about the same proportion of our field of vision no matter how high or low it is relative to the horizon.
If your kids don't believe you, here's a simple activity you can do to show them that the moon is always the same size. All you need is a paper clip to get started.
What You Need:
- Paper clip
- Clear night when the moon is low in the sky
Show Instructions
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