Ever wonder what causes lightning to strike? Explore the physics of lightning with this striking physical science worksheet!

There are lots of stories around the world for the rabbit moon: a rabbit image seen in the shadows on the moon's face. Here's one for young moon-gazers!

Use the clues in this crossword puzzle to fill in the blanks with different types of snake names. Learn interesting facts about snakes as you go!

Does your child love dogs? Test his knowledge on the different breeds of dog with some trivia questions!

Learn about the science behind one of nature's most awesome spectacles: monsoons.

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

This worksheet is a quick-reference tool of space vocabulary for kids, with an exercise to use the words properly in provided sentences.

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

This colorful diagram is a handy reference guide for kids learning basic body systems.

These worksheets help kids understand food webs, an important part of the life science curriculum in fourth grade.

There are many endangered species all around the world. Read about the Amur leopard and why it's endangered with this information page.

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

Our solar system has hundreds of moons! Read a bit about how a moon is formed with this lunar lesson.

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

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.

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.

Learn the basics of human anatomy with this info sheet all about the bladder. Your child will learn the different parts of the bladder