Did you know an elephant can eat 300 pounds of food in one day? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about elephants!

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

Children will learn important facts about food chains in these worksheets.

Learn more about what lives--and what thrives--in marshes with this fill-in-the-blank worksheet on marsh ecosystems.

Find out more about what REALLY dwells in swamp ecosystems with this worksheet all about swamps.

Learn a bit about meteors, asteroids and comets as they travel across the night sky. Can your child round out the page by adding color to these orbiting rocks?

Dive deep into your body's circulatory system with this worksheet on blood and what it's made of.

Learn more about the animals in the swamp food chain, and find out how each living thing in a swamp ecosystem needs another to survive.

Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn about flower anatomy with this worksheet.

Next time you head outside for a hike or a camping trip, bring along this checklist of animal tracks!

Get to know some of the friendly, furry, feathery river wildlife that live near American rivers, then match each one to its home.

Learn all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

Can you identify the difference between inherited and acquired traits?

Fifth-grade learners will look at a diagram of a cell, then follow the instructions to label its parts by color.