Explore Alliance Presents: How Do You KNOW? – Episode #9: 'Impactors and Craters'

This activity is larger, messier, and a lot more fun that the clay model we made in Episode #4. In the last activity, we pressed various size balls into a clay surface to make ‘craters’, depressions that were smooth and round, but not very exciting or dynamic. We’re going to take this up a notch and let kids see the crater making process as it happens! By dropping weights into pans of flour to look at the resulting craters, plus the ejecta – material which is blasted out of the crater on impact.