
When people climb tall mountains, they bring oxygen. They carry it in tanks. It helps them breathe. It helps them reach the top!
What Do You Think? Would you try mountain climbing? Why or why not?
Photo Credit: Rapt.Tv/Alamy Stock Photo
Some people are treated unfairly because they are African American, … read more
Lt. Col. George Hardy was born in 1925. He grew … read more
Madeleine Albright has died. She was the first woman to … read more
© 2026 McGraw-Hill Education. All Rights Reserved.