Reversible Changes: Melting Butter, Melting Chocolate, Water Condensing, Puddle Evaporating, Oil and Water Mixing, Blowing up a balloon, ice melting, Irreversible Changes: Baking Biscuits, Frying Eggs, Toasting Bread, Boiling Potatoes, Mixing Dough, Burning Wood, Cutting paper,

Sorting Reversible and Irreversible Changes

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?