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Why do shadows change size?

Learn how the position of a light source and an object changes the size of a shadow.

ScienceClass 61–2 min video + interactive
Topic lesson preview1:34
Step 1 of 4
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What you'll learn

  1. 1How shadows are formed
  2. 2Why shadow size changes
  3. 3How light position affects shadows

What happens next

Watch short videoSee how shadows change size in real life.Try interactive shadow experimentChange the conditions and see what happens.Quick check quizTest what you've learned.
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