🌠 Gallery

Dissolution & Solutions

How much will dissolve in water? 🥄 Add salt, sugar, alum, or flour one spoonful at a time. Whatever can't dissolve settles at the bottom. Raise the 🌡️ temperature and watch it dissolve, then cool it down to see it settle again! Flour just makes the water cloudy and never dissolves — so it's not a solution. 📊 In the Temperature Comparison tab, check how salt dissolves well at 20°C but alum takes the lead when heated, and test your predictions in the 🎯 Challenge! Supports 7 languages.