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.

What is energy? Energy is the ability to do work! Use this colorful worksheet to teach your little scientist the basics of energy.

Practice diagramming atoms and using the periodic table to pull information about atoms with this quiz page.

Arm your budding physicist with a free print-out version of the periodic table of the elements!

Students explore the relationship between mass, distance, and gravity in this middle school science worksheet!

Test your knowledge of the periodic table of the elements with this quiz page!

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

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

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

Help students deepen their understanding of matter with this chemisty worksheet!

Test your students' knowledge and memory of periodic table elements with this crossword puzzle.

Learn all about charging by friction with this fascinating science worksheet for middle grades!

What's the difference between renewable and non-renewable energy? Help your student discover the various forms of energy we use each day.

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

Our understanding of the atom has changed over the past few hundred years! Read about a few different theories on the structure of an atom.

What is water energy? Also known as hydro power, water energy is one of our important renewable resources!

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.

Where'd that shadow come from? Next time a scary shadow crosses your path, you'll know just what to look for.

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

Budding scientists will learn about the density of salt water and perform an experiment with food coloring, salt water, and fresh water.

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.

Give your budding chemist the facts and practice she needs for measuring with graduated cylinders.

Budding scientists can learn about an important physical science concept with this worksheet all about density!

Don't let school year learning slip away this summer: use this chemistry worksheet to practice identifying elements.

Help students visualize the relationships between kinetic energy, mass, and speed in this physical science worksheet!

Light can do amazing things, but nothing else brings out its crazy capabilities like the prism. Learn about the dazzling prism and make one of your own.

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

Increase your child's vocabulary and knowledge of the scientific world around him with a single sheet!

Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.