Children learn the fascinating physics behind lightning, along with a few fun facts, in this physical science worksheet.

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

These 12 dinosaur names are all mixed up, and need a dinosaur expert to help unscramble the letters.

Open your ears for some interesting science! Your little biologist will learn the basic parts of the ear with this diagram.

Here's a great introduction to five famous astronomers for kids. See who got the star party started with this worksheet.

What's the animal that swims upstream? Help your child figure this out with this cold-blooded animal crossword puzzle worksheet.

There are lots of stories around the world for the rabbit moon: a rabbit image seen in the shadows on the moon's face. Here's one for young moon-gazers!

Got a gardening guru on your hands? Give them a fun challenge with this fill-in-the-blanks quiz about the parts of a seed!

This Thanksgiving, serve up some Thanksgiving science learning and find out all about the chemicals that make up a typical Thanksgiving meal.

"The hip bone is connected to the...?" Sing the song perfectly with the help of this worksheet on the skeletal system!

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

Do you know the functions of the primary organs in the human body? Put your knowledge to the test with this fourth- and fifth-grade crossword!

Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

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

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!

Learn all about your body's most important muscle: your heart! This simple diagram is a great way to introduce your little biologist to his heart.

Learn how energy changes forms with this fourth- and fifth-grade physical science worksheet!

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

Expand your sea creature vocabulary with this Life in the Reef worksheet!

Become an energy investigator in this electrifying science worksheet!