Grades 3-5

Be a Water Saver

Be a Water Saver

Wondering how you can use water more wisely? Print this check list of simple things that you can do to help protect fresh water and the living things that depend on it. 

What's the Big Idea about Water?

What's the Big Idea about Water?

Did you know that all living things need water? Or that the water on Earth today is all we will ever have? Learn more about this precious resource. 

Be an Energy Saver

Be an Energy Saver

When it comes to global warming, your day-to-day actionscan make a big difference—if millions of people do it. Find out what you can do to save energy and slow climate change. 

What's the Big Idea About Climate Change?

What's the Big Idea About Climate Change?

This isn't the first time Earth's climate has changed, but it's the first time human activity has caused it. Learn more about global warming and how — and why — we should slow it. 

Moving Mammals

Moving Mammals

Walk, hop, gallop, swim, glide, burrow, and even swing from trees—these are just some of the ways the planet's 5,400 species of mammals move. See how fast, and slow, they can move.

In Pictures: Extreme Mammals

In Pictures: Extreme Mammals

From the extinct Cynognathus and Repenomamus to the plant-eating dugongs and manatees, explore some of Earth's most unusual mammals. 

In Pictures: Extreme Mammals

In Pictures: Extreme Mammals

From the extinct Cynognathus and Repenomamus to the plant-eating dugongs and manatees, explore some of Earth's most unusual mammals. 

Meet the OLogist: John Flynn

Meet the OLogist: John Flynn

From "What does a paleontologist do?" to "What's your favorite ice cream flavor?", find out how paleontologist John Flynn answered kids' questions.

Mammal Flip Books

Mammal Flip Books

How do how gazelles jump straight up into the air from a standstill? And why do dolphins swim differently than fish? Create six fun flipbooks to explore how mammals move!

Super Teeth

Super Teeth

What would it be like to bite like a saber-toothed cat? Or to gnaw like a beaver? Explore other mammals' teeth with this matching game and coloring book! 

Mammal Flip Books

Mammal Flip Books

How do how gazelles jump straight up into the air from a standstill? And why do dolphins swim differently than fish? Create six fun flipbooks to explore how mammals move!

Mammal Booklist

Mammal Booklist

From a journey through the basics of evolution to a look at mammal detectives to a re-creation of the world of prehistoric predators, these kid-friendly book and DVD titles bring to life the world of extreme mammals.

Climate Change Books

Climate Change Books

From weather experiments to North Pole travel to activities for "citizen scientists," these kid-friendly titles make it easy to explore weather and climate change. 

Make Your Own Paper

Make Your Own Paper

Today we take paper for granted, but it was once a treasured item. Discover this ancient secret by making your own paper using everyday items! 

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