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
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Magnified
You can magnify things that are far away too. You … read more
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Just Found: An ‘Extinct’ Clam That is Alive
These clams are small. They are hard to find. Scientists … read more