Galileo was one of the first modern scientists. He was born in Pisa, Italy, in 1564. At first he studied philosophy. But later he studied mathematics and astronomy. He was very interested in the way the earth and other planets move around the sun. He found out several important facts about our world. He also started a new of working in science. Before Galileo, scientists did not do experiments. They just guessed about how something happened. But Galileo was different. He did not just make guesses. He did experiments and watched to see what happened.
1. Why Galileo was an important scientist.
2. Important facts about our world.
3. A new way of working in science.
4. How planets move around the sun.