For scientists aged 8-12.
Students will perform three different experiments by dropping ball bearings into a box filled with sand. The first time, two balls with different masses will fall from the same height. The second time, two balls with the same mass will be dropped from two different heights. The third time, they will experiment with two balls with the same mass and similar initial height, however one will be thrown in order to have an initial velocity. Students will then use a flashlight to observe the craters made in the sand, and discuss the differences between the two craters.