Show a slide or large poster of the Moon. Ask students to describe what they see. Ask students if there are craters on the Earth. If available, show pictures of meteor craters on the Earth. Ask students what would happen if a large meteoroid or asteroid were to hit the Earth.
Crater features .
Showing pictures of impact craters, have students describe specific features that they see. Ask the students what the terms projectile, velocity, ejecta, ray, shock wave, and meteorite mean. Supply definitions as needed. Experiment techniques . Ask students what would happen if you dropped the same meteorite from different heights.