Does your learner ever wonder what makes the Earth dark at night and bright during the day?

The food chain is an important life science concept for fouth graders. This game makes it fun to learn!

Crossword puzzles are a great way to make life science learning fun. This one's all about natural selection, and it's sure to give your child a fun challenge.

Challenge your child' memory skills with this colorful worksheet. This fun printable will help with memorization skills and spatial awareness.

Children get to know a few geology terms in this landform word search puzzle.

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

Did you know that Uranus can get as cold as -144° Fahrenheit? Learn more about the third largest planet in our solar system on this planet printable.

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

A handy worksheet that breaks down the properties of metal. A good physical science review sheet to keep around for reference.

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

Meet the red wolf, an endangered species of animal that was once very common, but in the past 50 year nearly became extinct!

Here's a great worksheet for teaching your kids all about the planet Mercury. Did you know that it's the smallest planet in our solar system?

There are some parts of our brains that are still too complicated for scientists to understand! Find out the basics of the brain's functions with this fun page.

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.

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

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?

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!

Take a peek inside the human eye with this eye-catching worksheet! See a simple eye diagram and learn vocabulary words that will help your kid understand sight.

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

For your budding environmentalist, here is an information sheet on a well-known endangered species, the Komodo dragon!

If your kid loves the ocean, he may enjoy learning tons of trivia about our fishy friends in the sea. Brush up on your fish facts with this fun page!

Kids find grassland animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

What has two legs and carries its baby in a pouch? Fill in this crossword puzzle and learn some fun facts about two-legged creatures!

Here's a great way to teach your kids more about our solar system. This worksheet focuses on the dwarf planet, Pluto.

Learn some basic chemistry with this worksheet about the universal solvent: water. Find out why water is called the universal solvent.

This helpful worksheet lays out all the qualifications for planethood. A great way to start studying outer space science!

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.

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

Expand your sea creature vocabulary with this Life in the Reef worksheet!

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.