Curated OER
Solar Systems Models Foldable Question Sheet
For this solar system worksheet, students use foldable models they made of the planets to answer questions about each planet. They answer questions about the theories and predictions made in our history about the solar system and answer...
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Superior Ptolemaic Model
A simulation illustrating Ptolemy's geometrical system of explaining the varying speeds and directions of the planets, sun, and moon.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Inferior Ptolemaic Model
This simulation offers an illustration of Ptolemy's orbit for an inferior planet.
Concord Consortium
The Concord Consortium: Molecular Workbench: Epicycloid
View the creation of an epicycloid in this simulation.