Kid Moon: Splat!

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Mars Terra Meridiani surface imagery from NASA's Mars Odyssey Spacecraft

ERN Item Type: 

  • Classroom Activities


Lunar and Planetary Institute (LPI)


Children model ancient lunar impacts using water balloons. By measuring the diameter of the crater area, children discover that the Moon's argest impact basins were created by huge asteroids! Like these huge asteroids, the water balloons were destroyed on impact and leave a splash (i.e., crater) that is 10 to 20 times wider than the impactor. In this activity, students use water balloons to model these impact craters found on the Moon.

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