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

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

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.

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

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.

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

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

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

Explore magnetism with this colorful science worksheet for third and fourth graders!

Review the rock cycle with this second-, third-, and fourth-grade crossword puzzle!

Test your knowledge of electrical energy with this third- and fourth-grade worksheet!

Help third and fourth graders become rock stars with this informative geology worksheet!

Explore the strength of magnetic forces with this worksheet for third and fourth graders!

Discover different types of energy with this third- and fourth-grade science worksheet!

Discover the phases of the moon with this third- and fourth-grade space science worksheet!

Study the night sky with this hands-on science worksheet for third and fourth graders!

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!

Get a lesson in sports and science with this engaging third- and fourth-grade worksheet!

Consider the factors that affect magnetic forces in this informative third- and fourth-grade worksheet!

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

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

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

Take a science-filled trip to an amusement park in this third- and fourth-grade worksheet!

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

Looking for a fourth grade worksheet to help your kid with science? This printable will test his knowledge of the water cycle.

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!