Sweat is made of water and salt. When we sweat, we feel thirsty. We need to drink more water! This keeps us cool and safe.
Photo Credit: d3sign/Moment/Getty Images
In the Know
How Does a Thermos Work?
A thermos keeps drinks cold in the same way. The … read more
In the Know
Hispanic Heritage Month
September 15th to October 15th is Hispanic Heritage Month. Hispanic-Americans … read more
In the Know
What Is a Laser?
Doctors use lasers to help people. Lasers can be used … read more