以下是一個關於牛頓故事的英文版本：
Once upon a time, there was a boy named Isaac Newton who loved to play with falling objects. One day, he was sitting in his garden when he noticed that all the objects had a tendency to fall towards the ground. Curious about why this was so, he began to investigate and discovered the law of gravity.
Isaac Newton went on to make many other important discoveries in physics, including the law of conservation of momentum and the law of universal gravitation. He is considered one of the greatest scientists of all time.
希望這個故事能夠激發您的孩子對科學的興趣！