Simulate the formation of moon regolith ("moon dust") by banging rocks together. Experiment with its electrostatic properties, which made moon landings a challenge.
Science content (2016 curriculum):
Physics: Electricity, Electromagnetism (7)
Earth/Space: Sun, Moon, Solar System, Universe (1, 4, 6)
Science topic (2005 curriculum connection):
Earth and Space Science: Stars and Planets (grade 3)