Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

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

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

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

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

Label the parts of a tree with this simple science worksheet!

Is your fourth grader learning about electricity? This worksheet is all about circuits, tests her skills and reinforces the concept of how a circuit works!

Budding scientists can learn about an important physical science concept with this worksheet all about density!

With two simple yet fun experiments, this worksheet covers the interesting topic of cohesion and adhesion of water.

How many teeth does an alligator have? Find out with this fun worksheet, dedicated to teaching you and your child all about alligators!

Are you afraid of spiders? Don't scream, this fun worksheet is jam-packed with interesting facts and activities, all about black widow spiders!

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

How many machines can you find around the house? You may find them where you least expect it!

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Teach your kids all about the second planet from the Sun with this simple science sheet.

How much do you know about man's best friend? This fun worksheet is jam-packed with fun facts about dogs!

Learn the science of volcanic eruption with this cutaway diagram

Help your little learner understand the concept of buoyancy with this fun worksheet. He'll decide which items will keep this frog afloat!

If your scientist is mad for magnets, let him explore a few fun facts about magnetism with this physics page!

Make sure your young scientists stay safe as they conduct experiments!

In this worksheet, children identify and illustrate four things all plants need to grow. They then answer three simple research questions about plants.

If you think volcanoes are cool, this worksheet will blow your mind! Learn about the rock cycle by reading the paragraph and taking a multiple choice quiz.

Learn all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

Learn more about the earthworm by reading the diagram and, if you dare, conducting a few of the experiments on the next page.

This reading comprehension worksheet focuses on Brazil's incredible natural resources, targeting both Earth science and language arts.

Children label the eight planets of our Solar System in this simple astronomy worksheet.

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!

Introduce the concept of photosynthesis to young learners with this coloring page and simple diagram.