Grades: 4-12

Impact craters are formed when impactors such as meteorites smash into the Moon's surface. Explore the many factors that affect the appearance of impact craters include the size and velocity of the impactor and the geology of the surface.

http://www.nasa.gov/audience/foreducators/topnav/materials/listbytype/Impact_Craters.html

Grades: K-12

Find out where to look and how to collect tiny micrometeorites that fall to Earth and accumulate in your backyard.

http://education.jpl.nasa.gov/educators/micromet.html

Basic information and diagrams on meteors, meteorites and the formation of impact craters.

http://www.lpi.usra.edu/expmoon/science/craterstructure.html

Basic crater-making activity with comparison of craters on the Earth, Moon, and Mars.

http://www.lpi.usra.edu/education/explore/shaping_the_planets/activity_glance2.shtml

http://www.lpi.usra.edu/education/explore/shaping_the_planets/activity_impacts.shtml