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!

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.

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

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.

Read about Alexander Graham Bell, the man who made it possible for us to stay connected all day long, in this biography that comes with a science experiment.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

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

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of the metric system.