Physical Change: making ice cubes, ripping paper into two pieces, cutting your hair, sewing two pieces of cloth together, changes the form, but not the substance, Chemical Change: burning a log, digesting food, metal rusting, making elephant toothpaste, creates a new/different substance,

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?