Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

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.

Help your child read this page about the Sumatran rhinoceros, where they can color an illustration as they learn about why this animal is endangered.

Kids can explore ideas of storytelling and science as they fill in this comparison grid with their opinions. Start a conversation of ideas with this worksheet!

Where to flower babies come from? Use this word search to learn about the different pollinators in our environment, and how they help spread plant seeds.

Let your child explore the vocabulary associated with Earth's landforms with this colorful word search.

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

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

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

Teach your child about an endangered species with this information page, all about the Forest Owlet. They can color as they read some interesting facts.

Encourage your child to take a nature walk, using the prompts on this worksheet to write and draw their observations of plants, animals, sounds, and more.

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.

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.

Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

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

Get swept up in this comprehensive worksheet about the awesome power of dust storms.

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.

Let your coloring skills blossom with this flower anatomy worksheet. Make your own flower, color and put your vocabulary skills to the test!

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.

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

Practice geology vocabulary with this challenging crossword puzzle.

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

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

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

Take a plunge under the surface of the earth! With this worksheet as your guide, you may explore the geological processes of our planet.

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

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.