Review the terminology of collisions with this engaging crossword puzzle for fourth graders!

Learn about pearls, which seem like normal jewelry from a factory but are actually made from the mucus of mollusks!

Grab your trusty flashlight and get ready for a scientific treasure hunt!

Find out all about the different parts of the eyes and how they work together to make vision possible.

Here's a crazy thought experiment for you. Imagine you could create a monster made out of electricity!

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

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

This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

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!

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

This colorful diagram is a handy reference guide for kids learning basic body systems.

Quite possibly the most famous constellation, the Big Dipper is a small part of Ursa Major, the big bear constellation.

Teach your kids all about the second planet from the Sun with this simple science sheet.

Have any good ideas for recreational resources? The term "recreational resources" has to do with the activities we do for enjoyment and the places that we go.

Ocean resources are an incredible part of how we live our lives; read and write about them with this worksheet.

Life on Earth is vast and varied, from high in the sky to the bottom of the sea. Learn more about what lives on Earth with this reading and quiz worksheet.

This fun worksheet is jam-packed with fun facts, a word search and trivia questions, all about the baboon!

Ever heard of a Harris Hawk? Learn all about this cool bird with a fun sheet, including a grid drawing to guide your child in drawing his own hawk.

Quiz your little scientist on his knowledge of the soil layers! He'll be reviewing some important earth science concepts and key terms.

This mix-and-match lists examples of natural resources. Kids can connect the natural resource with the resulting product.

The grizzly bear once roamed across most of North America; now its habitat has shrunk to the northwest. Discover more about the grizzly with this worksheet.

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.

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

Before we knew what the stars were, people would often tell stories about the pictures that the stars formed. This one is called Aquila, the eagle!

Teach your child about a new bird, the Magpie, with a fun coloring sheet. She'll read a few fun facts about this species as she colors.

An energy pyramid is a simple way to graphically show how energy flows in an ecological community; somewhat similar to the food pyramid.

This activity allows you to learn a fact about each one of our nine planets. Color in the planets then turn the worksheet into a fun and educational placemat.

Children learn to identify the tracks of a pine marten, chipmunk, mountain lion, mountain goat, and grizzly bear in this matching worksheet.

You have a lot in common with all the other humans on this planet. You all have noses and arms and fingernails, but what makes you different?