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

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

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.

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.

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

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

Become an energy investigator in this electrifying science worksheet!