Fly high with The Wright Brothers, two siblings who soared to the forefront of history with their design for the first modern airplane.

Test your knowledge of prehistoric animals with this life sciences crossword puzzle!

Children put their science vocabulary to the test with this engaging crossword puzzle!

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.

Test your knowledge of electrical energy with this third- and fourth-grade worksheet!

Does your little gardener know about compost? Test their knowledge of this sensationally smelly earth science process!

Guinea pigs are social animals that make great pets. Test your child's knowledge of these furry critters with this fun quiz.

Test your little nature-lover's knowledge about our feathery friends. Can she figure out which bird fits each description?

Renewable energy is extremely important for the Earth's future! Test your child's knowledge of renewable resources with this review sheet.

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.

Earth has many different land and water features—can you recognize them? Test your knowledge with this crossword puzzle for third and fourth graders!

Test your third grader's biology knowledge with this worksheet, which challenges him to separate invertebrates from animals with a backbone.

Test your child's science savvy with this worksheet, which asks your child to identify what items are made from plants.

Looking for a fourth grade worksheet to help your kid with science? This printable will test his knowledge of the water cycle.

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

This worksheet features a scientific explanation and awesome photos of solar eclipses, which are extremely rare scientific phenomena.

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

The California condor has been brought back from the brink of extinction. This worksheet will help your little bird lover learn all about the condor.

Learn about the badgers that live in Yellowstone National Park.

Read about the mule deer, the most abundant deer in Yellowstone National Park.

How much do you know about our home planet? Boost your Earth knowledge with this science printable.

Do you know why Mars is called the Red Planet? Find out that and more on this planet printable.

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

Dragonflies are some of the oddest looking insects in the world, so it's appropriate that they have so many unique characteristics. Read all about them!

Looking for a way to teach your kids all about the planets? This worksheet is the way to go. It features Venus, the second planet from the sun.

Blast off into space with a fun planet printable. This one features Jupiter, the largest planet in our solar system.

Children label the eight planets of our Solar System in this simple astronomy worksheet.

Here's a great way to teach your kids more about our solar system. This worksheet focuses on the dwarf planet, Pluto.