Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

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.

Let your little weather observer discover the four seasons! She'll match up each season with its proper picture to show her knowledge of how weather changes.

All the animals in this word search share one characteristic: none of them have bones! Can your child find the boneless critters hidden in the puzzle?

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

Does your learner ever wonder what makes the Earth dark at night and bright during the day?

Kids find forest animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

Kids find grassland animals in this third grade science word search. Animal habitat worksheets help students learn about life forms in different environments.

A fun challenge for kids, this Earth Day crossword puzzle is a great way to review facts about the Earth and get a reminder on how to live green.

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 an elephant can eat 300 pounds of food in one day? This fun worksheet is jam-packed with fun facts, a word search and trivia, all about elephants!

Brush up on some physics vocabulary with this energy word search!

This word search is all about owls! Your child will learn a few different species of owl as he looks for them in the word search.

What's the weather like today? Here's a word search perfect for any budding meteorologist.

What a wonderful world word search! See if you can find all 10 of the Earth-related terms in the word search.

Help your child learn weather words with this climate-themed word search.

Discover the many different kinds of conifer and deciduous trees as you complete this word search!

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

Is a feather liquid, soft, spotted, or heavy? Practice describing everyday objects, or matter, with this second-grade science worksheet!

Explore the applications of electrical energy with this helpful second-grade worksheet!

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

These math cards are printable quiz cards to challenge your first grader's overall knowledge.

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

Do you know what can be found in the desert? Teach your child to read and spell a few new vocabulary words with this desert word search!

Here's a fun way for kids to review their knowledge of earth science terms. Challenge your child to give a definition of each word as he finds it.

From the blue whale to the Tasmanian devil, our planet is full of fascinating animals. Find a few of the most interesting ones in this animal word search.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

This word search helps expand kids' animal vocabulary and introduces them to animals that live in shells, all while keeping them entertained.

If your child is fascinated by outer space, he'll love this solar system word search! While reviewing planet names, he'll ponder the mysteries of the universe.

There are many different types of animal homes. Use this word search to help teach kids about a few of them!