How do we know about ice ages? Scientists study ice. Scientists study clues from glaciers. Scientists study fossils.
What Do You Think? How did humans live during the ice age?
Photo Credit: Corbin17/Alamy Stock Photo
In the Know
Women’s History Month
Misty Copeland joined a dance team when she was in … read more
In the Know
Mammals Cool Themselves in Unique Ways
Echidnas are small, spike-covered mammals. They live in areas with … read more
In the Know
What Makes a Community?
Dillon, Colorado built new buildings. They moved some buildings brick … read more