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
Summer Heat Waves
You should also take plenty of breaks. Stay cool near … read more
In the Know
What Can Clouds Tell Us?
Clouds can tell us about the weather. Thin, wispy clouds … read more
In the Know
What Is Immigration?
Sometimes people move to a new country. But they also … read more