After he fills in the blanks, your student can hold on to this worksheet on hydrogen for reference when preparing for tests and quizzes on physical science.

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?

Children put their science vocabulary to the test with this engaging crossword puzzle!

Introduce children to physicist Albert Einstein — and a bit of theoretical physics — with this mini biography.

During the Gold Rush, people weren't sure if they found gold or something else, and these easy steps would help them be sure.

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

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

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

Review the terminology of collisions with this engaging crossword puzzle for fourth graders!

Discover the differences between gravity and magnetism in this forceful worksheet!

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

Use your powers of prediction to project the future movement of playground objects!

Dive into the principles of energy transfer with this energetic physical science worksheet!

Test your knowledge of electrical energy with this 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!

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