Changing Materials. Cet article n’est pas disponible.Changing Materials

Children will be amazed to learn that a liquid can become a solid when it freezes, gases can turn into liquids when they cool down, and a solid can change into a liquid when it is heated. This magical new book for children explains in a simple way how materials change when we do things like bake a cake, melt ice, or burn a candle. Easy experiments also show children how to change materials using common household items.

Everything around you is made up of materials. We use materials to make objects such as tables and chairs, shoes and clothes, cars and aircraft. This book looks at how materials can change. Some materials, such as clay or plasticine, can change shape. Some materials, such as water, can freeze, condense or evaporate. Some materials can dissolve, such as sugar or salt, and some can change for ever, such as candles or wood.