Learn the ins and outs of one of the body's most important organs: the heart!

This tree anatomy worksheet will give your little naturalist a better understanding of the parts that make up a tree.

Animal lovers, get acquainted with a very unique species, the okapi! Read this info-sheet to learn about why this animal is endangered.

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

How do you think our universe will end? With this worksheet, explore some of the common theories, and then come up with some of your own!

Step up to the controls, Dr. Frankenstein -- the world is in need of a new creature!

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

Introduce your child to a fascinating new animal, the Baird's tapir. This is just one of many endangered species around the world.

These "Dig It!" worksheets not only teach about life on earth, they teach the scientific method as well.

There are many animals around the world whose lives or homes are threatened. Read about an endangered species from Africa with this info-sheet

Learn what distinguishes a meteoroid, meteor and meteorite with this outer space science sheet!

Both of these animals have big ears! Your child will look at the pictures of unusual animals in this worksheet and try to learn some new things about them.

Help your child understand why it's so important to take care of the environment with this info-sheet about an endangered species: the spectacled bear.

Get in tune with nature, and read a bit about an endangered species of animal, the Black-footed Ferret. Your child can color an illustration as he reads.

As your child completes this science worksheet on the life cycle of a peanut, he'll get the chance to practice his sequencing, labeling, and drawing skills.

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.

Help your child learn about facts and opinions in this animal-themed worksheet! Students will read sentences and decide whether they express facts or opinions.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

Don't let your kid bark up the wrong tree! Engage him in a word search filled with tree terms, boosting his attention to detail and problem solving skills.

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

Is air a natural resource? You bet! Air as a resource carries oxygen, which we need. Read and write about ways air quality can be affected.

The rainforest is a vibrant, lush place teaming with life! Have your little environmentalist think of some ways to help the rainforest.

Did you know there are clouds in space? They are very different than the ones on Earth! Read a bit about nebula in this space science worksheet.

Let your kid's knowledge of leaf vocabulary climb as high as a tall, tall tree with this fun word search.

Learn about a famous woman of science, Rosalind Franklin, and how she contributed to the discovery of DNA's double-helix structure.

Fossils have a lot to teach us about life on earth, but they can also be used to help teach kids the scientific method.

In which habitat could you find an arctic fox, a polar bear, and a snowy owl? Have your kid find tundra animals with this word search worksheet.

Get to know one of the most unique and colorful monkeys, the red-shanked douc langur. Read about why they are an endangered species with this info-sheet.

Learn about the plants and animals that make deciduous forests their home, then complete the crossword puzzle.