This experiment requires only lemon juice, salt, sugar and grapefruit. Your budding scientist can get a great introduction to science by testing her own tongue!

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

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

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

Let your scientific skills shine as you decide which objects will let light pass through in this kindergarten and first-grade worksheet!

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

Challenge your child's knowledge of astronomy with this space-themed worksheet, which focuses on the timing of cosmic events.

Boost your second grader's knowledge of space with this fun worksheet, which will have her unscrambling the answers to planetary trivia.

Can your child tell what will be attracted by a magnet? Challenge him to think about why magnets attract certain objects.

Looking for a worksheet to challenge your child's knowledge of science? This printable asks him to identify a solid, liquid and gas.

Introduce the basic concepts of sinking and floating with this fun worksheet. Your budding scientist will decide if these objects sink or float!

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

Help your little learner understand the concept of buoyancy with this fun worksheet. He'll decide which items will keep this frog afloat!

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

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

Magnets are fun to play with, but how do they actually work? Have your child circle the objects he thinks the magnet will attract.

Let your 1st grader become a mad scientist in this fun science board game, and encourage her to become a lover of the interesting subject.

Meet the master of compound machines: Rube Goldberg! His wacky contraptions put a whole new spin on the use of simple machines.

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.

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Learn about the similarities and differences between objects in this colorful science worksheet!

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

Listen closely! Do you hear anything? Identify examples of sound energy in this kindergarten and first-grade worksheet!

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

This worksheet uses a paper bird to demonstrate center of gravity, and practices following directions and fine motor skills.

Searching for help with you kid's geography skills? This printable worksheet will teach them the continent of South America.

Searching for a way to help you kid practice their geography knowledge? This printable is a great way to learn the countries in North America.

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

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