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
Reading the News
It is important to find out about the world. Let’s … read more
In the Know
Dr. Andrea Ghez and the Giant Black Hole
This picture shows the black hole. Do you see it? … read more
In the Know
Water Changes!
This is a hot spring [a natural pool of hot … read more