
Humans are mammals. Humans sweat when their bodies get hot. Sweat is the body’s natural reaction. It helps the body to cool off.
Photo Credit: Arianna Palazzi/Flickr RF/Getty Images
It is important to find out about the world. Let’s … read more
An inventor is someone who has great ideas. You might … read more
August 9th is the Day of World’s Indigenous Peoples. Indigenous … read more
© 2026 McGraw-Hill Education. All Rights Reserved.