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A Wonderleaf question

How does a magnifying glass make things bigger?

How does a magnifying glass make things bigger?

a real page from the book

A magnifying glass makes things look bigger by bending the light coming from them before it reaches your eyes. Your brain reads those tilted rays as if they came from a larger object, so a small bug or letter appears enlarged through the lens.

The bend happens because light changes speed as it enters glass, a trick called refraction. More rounded lenses bend rays more strongly, which is why some magnifiers show a gentle close-up while others reveal tiny hairs, dots, and scratches.

Wonder words

  • lens
  • rays
  • refraction
  • curved

Try it out

Place a clear glass of water over printed words and move it slowly until the letters swell or warp.

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