1) is metal a conductor a) yes b) no c) sometimes 2) Does plastic come from Nature a) No b) yes c) sometimes 3) Is glass transparent a) no b) sometimes c) yes 4) is wood a insulator a) no b) sometimes c) yes 5) Is freezing a reversible change a) yes b) no c) sometimes 6) is Plastic waterproof a) yes b) no c) sometimes 7) What is sieving a) A mixture made from solid particles b) Separating a mixture of sand and water

Learning

Печат
За вграждане

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?