Curated OER
Learning About the Shape of the Earth
Seventh graders investigate ways of telling the shape of the Earth and its position in the Universe both historically and today.
Curated OER
How Does a Satellite Stay in Orbit?
Learners explore placing a satellite into orbit, then about forces needed to keep an object in orbit. They examine how satellites orbit in elliptical paths and about properties of ellipses. They learn Kepler's 3rd Law of Planetary Motion