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

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

Introduce the basic concepts of sinking and floating with this fun worksheet. Your little one will decide which objects sink, and which ones float!

If a ship went down, would these items sink or float? Your little one will decide, with this fun worksheet to help him hone sorting and categorizing skills.

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

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

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

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

Help your child's curiosity blast off by introducing them to some basic chemistry with this simple rocket demonstration.

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

For each item on this first grade science worksheet, kids match a piece of clothing with the thermometer showing a temperature for wearing the item of clothing.

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

Did you know that the screw is actually one of the six simple machines? This handy machine helps 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.

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

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

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

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

How many machines can you find around the house? You may find them where you least expect it!

Budding inventors can get a fun review of the simple machines with this word search.

Alfred Nobel, though he held over 300 patents in his lifetime, is most famous for inventing dynamite.

Explore everyday forces with this first- and second-grade science worksheet!

Is orange juice a solid or liquid? What about a cookie? Practice classifying everyday objects in this first- and second-grade states of matter worksheet!

Analyze everyday objects and identify states of matter with this second- and third-grade science worksheet!

Can melted wax turn back into solid wax? Can scrambled eggs turn back into raw eggs? Learn the answers to these questions and more with this second-grade worksheet about reversible and irreversible changes!

What do juice, water, and tea have in common? Compare and contrast matter in this engaging second-grade worksheet!

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

Practice describing, or classifying, different items by their properties in this inviting worksheet!

Learn about the texture and hardness of different objects in this second-grade worksheet!

Identify examples of pushes and pulls with this cut-and-paste worksheet for kindergarteners and first graders!