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.

Let your child put her thinking cap on and take a moment to write about the influence people might have had on the formation of landforms.

This worksheet is a quick-reference tool of space vocabulary for kids, with an exercise to use the words properly in provided sentences.

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.

Get to know each of the Seven Summits, then organize their heights into a graph.

Mix a little art into your science with this reading-slash-drawing sheet on hills and valleys.

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.

Learn a little about the constellation called Cancer the crab with this constellations worksheet.

Let your kid's knowledge of leaf vocabulary climb as high as a tall, tall tree with this fun word search.

Here's a quick overview of drought and flooding to spark thoughts or conversation with your kids about water.

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.

This Earth Day, learn about conservation and the environment while you enjoy solving a fun puzzle! 

Look up into the night sky, and you may see three prominent stars side by side. This is Orion's belt, one of the most well known constellations!

What happens to water as it travels through mushy, smushy wetlands and swamps? Find out all about the water cycle and fill in scientific terms in the swamp.

Searching for a worksheet to help your fourth grader with science? This printable will help him with geology.

Our ecosystems need a protector; is your third grader up to the challenge? Identify harmful pollutants in a science worksheet that doubles as a coloring page.

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

Does your child have a knack for astronomy? Teach him about the constellations with this great worksheet.

What is biomass energy? Learn about an important form of renewable energy with this colorful worksheet.

Learn how sand dunes form, and a little bit about desert formations like yardangs as well, in this science summary sheet.

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.

Did you know there are clouds in space? They are very different than the ones on Earth! Read a bit about nebula in this space science worksheet.

How do you think our universe will end? With this worksheet, explore some of the common theories, and then come up with some of your own!

Do you ever see shapes in the stars at night? In ancient times, people named these shapes, and now we know them today as constellations!

Looking for a worksheet to help your kid with science? This printable will help him with his knowledge of geology.

Back in ancient times, the stars were used as storytelling tools. People created characters and stories that they saw in the stars, like Leo the lion.

If you're fascinated by bugs, check out this coloring page featuring the insect order Odonata, which consists of damselfies and dragonflies.

Searching for a worksheet that will give your kid help with his science skills? This printable will challenge his knowledge of plants.

It's pretty rare when a planet comes between Earth and the sun, but it happened on June 5, 2012. Learn about this mind-boggling event with this cool worksheet!

Did you know "Delphinus" is Latin for "dolphin"? Learn all about this cool constellation with this worksheet!