
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
They all flash again. These fireflies are called synchronous fireflies. They … read more
Summer is over and school has started. Here are some … read more
Air pushes against cars as they move. This can slow … read more
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