Title: The Curies and radioactivity
Subjects: Radioactivity, Chemists, History, Juvenile literature, Biography, Curie, marie, 1867-1934, juvenile literature, Curie, marie, 1867-1934, Poland, Poland, juvenile literature, France, history, France, juvenile literature, Radioactivity, juvenile literature
Places: Poland, France
People: Marie Curie (1867-1934), Pierre Curie (1859-1906)