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.

Energy is a crucial part of physical science! All things on Earth have energy, whether it's potential or kinetic.

Right now the Earth is spinning, whether we can feel it or not. Do you know why? Uncover the science behind our spinning planet with this informative worksheet.

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

Ever wonder about how to make the perfect paper airplane? Learn about the four forces that affect flight with paper airplane physics!