Lenses help us see. Lenses help us learn.
Look at this tiny animal. It is in a drop of pond water. We can use a microscope to see it. What do you see?
What Can You Do? How can you use lenses?
Photo Credit: Peter Parks/NHPA/Photoshot
In the Know
Can You Hear the Stars?
The sounds tell her about stars. How hot are they? How long do they stay bright? Sometimes, Díaz-Merced learns more when … read more
In the Know
What Is a Water Bear?
What happens when a water bear gets too dry? The … read more
In the Know
Pumpkin Time
Giant pumpkins need a lot longer to grow. They need … read more