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.

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

Dive into the electrifying concept of electrical energy in this colorful worksheet!

Describe how things feel when you touch them and push on them!

Learn about the similarities and differences between objects in this colorful science worksheet!

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

Who will win the marble race in this two-page physical science worksheet?

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

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

Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

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

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

Explore the applications of electrical energy with this helpful second-grade worksheet!

Practice describing different objects and substances in this colorful worksheet!

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

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

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

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

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

Learn how conductors and insulators affect the flow of electricity in this helpful fourth- and fifth-grade worksheet!

Children learn why the light from the sun seems white to us, why we see objects in color, and why the sky is blue in this beautiful and fascinating worksheet.

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

Use your detective skills to predict the motion of a seesaw in this third-grade worksheet!

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Get charged up about static electricity with this informative fourth- and fifth-grade worksheet!

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.

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!

Apply concepts of energy and motion to marbles in this fourth-grade worksheet!