Kids need lots of things to grow up healthy and strong, and plants do, too! Can your child think of things a plant needs to grow?

Hop this way for some marsupial madness! Your child can learn about the life cycle of a kangaroo, and how marsupials differ from mammals.

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

The rainforest is a vibrant, lush place teaming with life! Your little nature explorer can take an expedition to find the many hidden animals in this scene.

Dreams can be delightful or downright terrifying. Discover the science behind dreams and try to figure out what your dreams say about you.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

Learn about the animal practice of hibernation in this quick science worksheet.

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Test your third grader's biology knowledge with this worksheet, which challenges him to separate invertebrates from animals with a backbone.

In this introductory tree-diagramming worksheet, young naturalists will unscramble each label to reveal five parts of the tree.

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

Playing in the dirt was never so educational! Shake things up with this fun experiment about soil.

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Find out all about the different parts of the eyes and how they work together to make vision possible.

Did you know jaguars are great swimmers? Kids will learn all about rainforest animals with this fun activity page, including a word search and coloring!

Young astronomers unscramble words to reveal the heavens in this fun space science worksheet.

Bird-watchers will love this worksheet, featuring just a sample of the many song birds flying around Yellowstone National Park.

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?

This experiment requires only lemon juice, salt, sugar and grapefruit. Your budding scientist can get a great introduction to science by testing her own tongue!

Little scientists can learn about a fundamental concept of physical science with this worksheet all about density!

This worksheet featuring food and natural resources touches on the subject of food chains.

Aspiring astronomers, get ready for a stellar coloring page all about the moon! Your child can read some fun facts as he colors.

Did you know butterflies have no teeth? How do you think they eat? Check out this science worksheet to learn all about it.

Read about the small population of huge moose in Yellowstone National Park.

From the blue whale to the Tasmanian devil, our planet is full of fascinating animals. Find a few of the most interesting ones in this animal word search.

Count the number of sea creatures and make a bar graph with this shark worksheet. Make an underwater word ladder with your 2nd grader, too.