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Activity: Make Some Moon Craters


In Hey Mars Put a Ring On It!, we learned all about a Martian moon crater called the Stickney Crater that’s wider than 98 football fields. Holy Moly! Craters are formed when planets, or moons, get struck by asteroids or other large pieces of space rock. Let’s create some craters of our own with this simple activity. To the moooooon…



  • newspaper
  • round cake pan
  • 4 cups of flour
  • ½ cup baby oil
  • 8 marbles or small pebbles

Step 1: Cover your table or work surface with newspaper (this can get a little messy).

Step 2: Measure 4 cups of flour into the cake pan.

Step 3: Add ½ cup baby oil and mix to combine (best to use your hands).

Step 4: Now pat the fully combined mixture down into the bottom of the pan in a smooth, even layer. Voila, this is the surface of your moon!

Step 5: Move the cake pan moon to the floor.

Step 6: With the pan now resting on the floor, drop some marbles from above down onto the moon’s surface.

Step 6: Experiment with dropping your marbles from different heights and with different levels of force. Your goal is to make sure the marbles make an impression in the flour mixture.

Step 7: Gently lift the marbles out to observe the craters you’ve formed. Add more if desired.