A thermos keeps drinks cold in the same way. The vacuum does not allow heat to move into the bottle. The heat stays outside. Your drink stays cool.
What Can You Do? How can you use a thermos?
Photo Credit: VP Photo Studio/Shutterstock
In the Know
What Is Sweat?
Sweat is made of water and salt. When we sweat, … read more
In the Know
What Do You Know About Snow?
Snow is lots of fun! And it is pretty too. … read more
In the Know
Three African Americans Who Made a Difference
February is Black History Month. Let’s honor three African Americans … read more