States of Matter

How to play

Five levels unlock in order: move the temperature slider until you reach the asked state, name the change (melting, freezing, evaporation, condensation, sublimation), sort the melting points, order the water cycle, then a short quiz. Earn three stars with the fewest mistakes.

• 🆓 Completely free, no sign-up and no download.
• 📱 Works on phone, tablet and PC, with touch or keyboard.
• 📲 After each round, share your score on WhatsApp and challenge friends to beat it.