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

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

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

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.

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

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

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

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

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

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

Alfred Nobel, though he held over 300 patents in his lifetime, is most famous for inventing dynamite.

Explore everyday forces with this first- and second-grade science worksheet!

Is orange juice a solid or liquid? What about a cookie? Practice classifying everyday objects in this first- and second-grade states of matter worksheet!

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!

Can melted wax turn back into solid wax? Can scrambled eggs turn back into raw eggs? Learn the answers to these questions and more with this second-grade worksheet about reversible and irreversible changes!

Kids practice identifying solids for a lesson on the states of matter in this 1st grade physical science worksheet.

Kids practice identifying liquids for a lesson on the states of matter in this 1st grade physical science worksheet.

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.

Kids draw examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

Kids write down examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

What do juice, water, and tea have in common? Compare and contrast matter in this engaging second-grade worksheet!

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

What do a key, a goldfish, and a tortoise shell have in common? Find out with this second-grade science worksheet!

Shed some light on the interactions between objects and light with this science worksheet for kindergarteners and first graders!

Practice describing, or classifying, different items by their properties in this inviting worksheet!

Learn about the texture and hardness of different objects in this second-grade worksheet!

See if you can identify the objects that let light pass through them with this kindergarten and first-grade worksheet!