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
Melody and Composition
Place notes in eight spaces, then repeat and change the last note to hear how a melody's shape and ending feel.
by Anonymous