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

In this worksheet, kids learn about friction by answering questions about the amount of friction in different situations.

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

This worksheet will quiz your child on the different fields of study in science. What's the difference between a zoologist and a geologist? Find out here!

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

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

Introduce your budding scientist to chemical reactions with this simple and fun science experiment!

This science vocabulary activity is packed with basic science vocabulary words to help the youngest kids warm up to scientific concepts.

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

Have you ever wondered why water in a drinking glass looks clear while water in the ocean looks blue? Find out why with this fun worksheet!

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

Kids draw examples of solids, liquids, and gases in this 1st grade physical science worksheet that focuses on the states of matter.

Discover the science behind an ages-old 4th of July tradition with this firework diagram.

Experiment with renewable energy from the comfort of home by creating a pizza box solar oven!

Learn all about the science of the movies and the basic concepts behind how they work.

Teach your child how we measure temperature with these printable thermometers!

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

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

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

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

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

Help your student become aware of everyday energy use with this fill-in-the-blank worksheet.

When we push or pull an object, we exert force on it. Get your child thinking about force by challenging him to describe how each person is exerting force.

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.

Engage your little scientist with a fun word search, all about sinking and floating! He'll be learning a basic concept of physical science.

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

Glass is everywhere, but have you ever wondered where it all came from? It doesn't grow anywhere -- we have to make it!

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

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

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