内容简介
With this charmingly illustrated book — and a little help from a parent or other grownup — kids can conduct fun-filled science experiments using recycled household items. They'll learn about sound waves by transforming ordinary cardboard tubing into music-making didgeridoos and kazoos. Other eye-opening activities involve building a battery with pennies and tinfoil, playing a fishing game that illustrates the principles of magnetic force, and using food coloring and fizzy antacid tablets to make a lava lamp.
Additional projects include discovering the differences between crickets and grasshoppers, mixing up a batch of invisible ink, and learning how to clone plants. Easy-to-follow instructions explain how to make a butterfly feeder, a birdbath, eggshell planters, a windsock, a string telephone, and other items. Each activity features a simple explanation of its underlying scientific principles.
关于退货规则：由于按需印刷商品版图书属于定制类商品，根据订单递交成功再安排印刷，因此不接受7天无理由退换货。您付款的同时，我们已安排下厂印刷。如有质量问题的商品，可以接受退货，但不接受换货。如果退货后依然需要此商品，自快递签收日起的5日内，可联系当当客服退货后再重新下单，并且保持出售时原状和收货单据的齐全。
Additional projects include discovering the differences between crickets and grasshoppers, mixing up a batch of invisible ink, and learning how to clone plants. Easy-to-follow instructions explain how to make a butterfly feeder, a birdbath, eggshell planters, a windsock, a string telephone, and other items. Each activity features a simple explanation of its underlying scientific principles.
关于退货规则：由于按需印刷商品版图书属于定制类商品，根据订单递交成功再安排印刷，因此不接受7天无理由退换货。您付款的同时，我们已安排下厂印刷。如有质量问题的商品，可以接受退货，但不接受换货。如果退货后依然需要此商品，自快递签收日起的5日内，可联系当当客服退货后再重新下单，并且保持出售时原状和收货单据的齐全。