Grades 3-5

What's This?

What's This?

Can you tell the difference between a giraffe's bones and those from a mammoth? Test your knowledge of fossils.

Layers of Time

Layers of Time

How do your fossil-sorting skills stack up? Put them to the test with this kid-friendly online puzzle.

What's This?

What's This?

Can you tell, just by looking at it, if a pygmy loris is a rodent, a primate, or a raccoon's relative? Put your knowledge to the test.

Make Your Own Mythic Mask or Puppet

Make Your Own Mythic Mask or Puppet

What happens when cyclops, the one-eyed giant from Greek mythology, meets Indonesia's shaggy lion-like Barong? Well, that's all up to you. Don these masks and tell your own mythic tale. 

Mythic Mystery Map

Mythic Mystery Map

Does a dragon always breathe fire? Can a unicorn have colorful, shiny scales? Find out how well you know your mythic creatures with this map challenge. 

Living on Ice

Living on Ice

Can you solve these four chilly puzzles about how people and animals live in the Arctic? Put your story telling skills to the test and collect new OLogy trading cards. 

Water Books for Kids

Water Books for Kids

From the day in the life of a pond to a trip through the NYC water supply system, examine the world’s most precious resource with these kid-friendly titles.

Arctic Story Puzzles

Arctic Story Puzzles

Life in the icy Arctic isn't so hard if you're prepared! Solve the puzzle of how people and polar bears live in a land of ice. 

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. 

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