A boy name Isaac newton, he lived with his parents. One sunny day, he and his playmates play, and play, and play. When he got tired he rest under an apple tree, while he was resting an apple fell into his head. "Ouch!" said Isaac newton. He went home and kept thinking about the apple feel into his head and that's how he discover the law of gravity.
Students learn about the discovery of Isaac newton first law of motion" Law of Gravity."