Has your child learned about the life cycle of a frog in school? Test his understanding with this cute cut and paste worksheet.

Why do some objects make loud sounds when dropped, while others make quiet sounds?

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!

Is your little one into creepy crawlies? Test his bug knowledge with a fun crossword puzzle.

Put your prediction proficiency to the test in this third-grade physical science worksheet!

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

Test your memory skills as you review the different types of animal body coverings with this animal memory match game!

Can your little geologist identify the three main types of rock? Test his earth science savvy with a matching activity.

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.

Your child may have heard of the Tasmanian devil from a cartoon or from a friend at school, but this worksheet will show him the real Tasmanian devil.

In this science matching worksheet, children will test their solar system know-how by matching each celestial body to the correct fact.

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

Looking for quiz questions to test your first grader's general knowledge? This printable will challenge your kid's overall knowledge.

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.

This worksheet tests kids' understanding of basic heredity by asking them to match parent turtles with their offspring based on similar traits.

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.

This page celebrates the Louisiana state bird, the Brown Pelican!

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.