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
Giant pumpkins need a lot longer to grow. They need … read more
Winter birds have special behaviors to survive the cold. They … read more
Jelly beans are fun! Some are sour. Some are sweet. … read more
© 2024 McGraw-Hill Education. All Rights Reserved.