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
Fazlur Khan’s Big Idea
Khan and his team used this idea to build the … read more
In the Know
Can Screens Hurt Your Eyes?
Light from screens can affect sleep. It makes it hard … read more
In the Know
Can You Hoop?
Scientists used robots to find out why. Scientists studied different … read more