The infamous Halley's Comet only comes around once every 75 years or so! Read some interesting info on the world's most famous comet.

Have you ever seen a willow or a walnut tree? These big trees have very differently shaped leaves. Can you match each leaf with its correct tree?

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

Children get to know the tracks of familiar farm animals in this drawing activity.

Don't let your kid bark up the wrong tree! Engage him in a word search filled with tree terms, boosting his attention to detail and problem solving skills.

Seasonal weather postcards get kids to learn some vocabulary and identify the seasons. Learn about spring, summer, fall, and winter with weather postcards.

Children hone their observation skills by matching the tracks to their corresponding water animal in this worksheet.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Challenge your science student to record a shadow over the course of a day and make the connection between shadows and the time of day.

Kids will learn about fossils in this worksheet. Help your child learn about the scientific method by getting him to examine a fossilized dinosaur skeleton.

Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

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

Here's an introduction to different types of rocks.

Ever wonder what's inside a camel's hump? Your child will become familiar with animals that live in the desert with this fun activity sheet!

What does a seal eat? Kids choose the pictures that show what kind of food each animal likes to eat in this first grade life science worksheet.

Got a gardening guru on your hands? Give them a fun challenge with this fill-in-the-blanks quiz about the parts of a seed!

Would you put your swimsuit on when it's snowing outside? Let your child decide with this simple categorization worksheet

Let's talk about trees! Help your child use Earth Day as an excuse to praise the woody perennials that hardly ever get the recognition they deserve.

Circle and color all the pieces that Jenny might need for a day of sun and sand.