Think toads and frogs are the same? Think again! Check out this breakdown of the differences between the two, complete with a quiz to check your new knowledge.

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.

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

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

This short nonfiction text will provide students with an opportunity to become more comfortable with identifying and defining academic vocabulary words—and they'll have fun learning all about the life cycle of a chicken in the process!

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

Learn facts about Venus, the planet that shines the brightest in our night sky! Then practice your knowledge of the solar system with bonus trivia at the end.

Budding inventors can get a fun review of the simple machines with this word search.

Without rain, we wouldn't have any puddles to splash and stomp in. Does your third grader know why and how rain falls from the clouds?

Help your student become aware of everyday energy use with this fill-in-the-blank worksheet.

Which animals can live happily alongside humans? With this word search, match up game, fun facts, your child will learn more about urban animal habitats.

Learn the difference between behavioral and physical adaptations with this cut-and-paste worksheet for second and third graders!

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

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

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

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

Do you know which animal has two humps? Your child will use clues to determine what animal name fits in the crossword puzzle with this worksheet.

Mix a little art into your science with this reading-slash-drawing sheet on hills and valleys.

From glaciers to mountains to wetlands, our planet has lots of different landforms. Help your child learn all about them with this fun earth science crossword.

Ready for liftoff? Take to the starry skies with this worksheet that explores the three basic types of galaxies.

Learn about the black bears of Yellowstone National Park.

Discover the science behind an ages-old 4th of July tradition with this firework diagram.

Teach your child about the layout of the Solar System with this simple worksheet, featuring the planet Neptune.

Give your kid help with his science skills with this worksheet, which practices natural disaster vocabulary.

In this worksheet, children will learn about the intricate "waggle dance" honeybees use to communicate to each other.

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!

How much do you know about the U.S. national bird? Learn all about the bald eagle with this fun, informative worksheet!

Where is the Earth in space? Check out this worksheet that describes where weÃand some of our neighborsÃare in our galaxy.