Gallery
Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.
Different Gases
Weigh air itself, change temperature and pressure to watch a balloon's volume shift, and run tests to tell oxygen, carbon dioxide, nitrogen and helium apart.
by Anonymous
Combustion & Extinction
Toggle fuel, oxygen, and heat to find out which condition is missing when a fire won't start or goes out.
by Anonymous