What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

Plants need to breathe and eat food (energy) just like us! Help your budding naturalist to learn about photosynthesis.

Do you need a job? Well, this elephant is looking for a new symbiotic partner, and you could be just the candidate he's looking for!

Did you know that there is no new water on Earth? It all gets recycled and reused in a process that we call the water cycle.

Dig up some earth science learning with this printable, and turn your next hike or beach excursion into a lesson in soil science!

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

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

An energy pyramid is a simple way to graphically show how energy flows in an ecological community; somewhat similar to the food pyramid.

Learn all about the basic parts of a plant with a fun word scramble! Your child will un-scramble the letters to name different parts of a pretty plant.

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

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.

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

Bug out on some insect anatomy! Can you name each part of the insect? Try making an educated guess by using what you already know about animal body parts.

You won't find a smaller animal that looks meaner than the frill-necked lizard. When it gets frightened, it opens its mouth wide and flares its trademark frill.

Give your kid help with his science skills with this worksheet, which practices natural disaster vocabulary.

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

Got a zoo trip planned? Give your kids a fun way to explore the best of the zoo with a mini zoo passport!

Looking for a fun way to supplement your child's science learning? Try out a life science crossword puzzle! This one's all about ecosystems.

Did you know the surface of the Earth is always changing? Learn about the events that change Earth's surface with this crossword puzzle for second and third graders!

Students practice classifying items as liquids or solids for a lesson on the states of matter in this fourth grade physical science worksheet.

In this introductory tree-diagramming worksheet, young naturalists will unscramble each label to reveal five parts of the tree.

Say hello to the red-eyed tree frog in this kindergarten and first-grade worksheet!

Review the rock cycle with this second-, third-, and fourth-grade crossword puzzle!

Investigate the traits you inherited from your mother and father in this worksheet!