
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
It is good to be polite. It is a way … read more
Moving keeps your bones and muscles strong. It also keeps … read more
What can you do on Thanksgiving? Some cities have parades … read more
© 2026 McGraw-Hill Education. All Rights Reserved.