Фрагмент из книги.
Our class heard about the school boat festival in our science class. Our teacher explained that we had to make several different boats so we could learn what makes boats float on water. First, my group made a sailing boat, but when we sailed it in the school swimming pool, it sank because there were holes in the wood! So, we decided to make a boat from old plastic bottles and that didn't sink under the water!









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