Gallery
Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.
Moon Phase Simulator
Move the Moon around Earth to see how the Sun–Earth–Moon positions create the eight lunar phases.
Volcanoes & Earthquakes
Push plates together, slide them past each other, or pull them apart to see how mountains, volcanoes, and earthquakes form.
Rock Layers and Fossils
Stack gravel, sand, and mud into layers and clear the dirt to uncover fossils, discovering that the deeper a layer sits, the older it is.
The Solar System
Tap each of the eight planets to compare its order from the Sun, size against Earth, and year length.
The Water Cycle
Click evaporation, condensation, precipitation, and collection to follow a droplet's journey between sky and ground.
Changing Seasons
Orbit Earth around the Sun to find out how its tilted axis brings summer, winter and the changing scenery.