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
The Winter Olympics and Paralympics
Amy Purdy had both of her feet removed because of … read more
In the Know
What Do Engineers Do?
Engineers use science. Engineers use math. Engineers are curious. They … read more
In the Know
A Bumpy Ride
Turbulence happens a lot. Pilots are trained for it. They … read more