Mary was a famous scientist. She died many years ago but no one can forget her.When she was young, she showed GREat interest in science. She made up her mind to be a scientist. She studied very hard. She thought more of her work than any other things. She married another famous scientist and began to discover the world together. They worked very hard.
After her husband died she went on with her study. She discovered Ra. That made her win the Nobel Prize for the second time.
She died in an accident. People all over the world were sorry for that. Her life was really short, but the spirit lasts long.