Children will learn important facts about food chains in these worksheets.

This packet of worksheets introduces children to food webs, an important life science concept.

Help your child get to know the most elementary of the elements with these handy worksheets.

These worksheets help kids understand food webs, an important part of the life science curriculum in fourth grade.

Don't be crabby! This worksheets introduces your child to a fascinating crustacean. Fill in the anatomy of a crab using the numbers in the word bank.

Learn the importance of natural adaptations with this inquisitive activity!

Get to know the residents of the reef with this coral reef-themed crossword, perfect for expanding life science knowledge and working on vocabulary, too!

Test your students' knowledge and memory of periodic table elements with this crossword puzzle.

Learn all about the ooey-gooey areas of land called wetlands that provide a home for certain kinds of plants and animals.

Learn more about two kinds of aquatic biomesÃfreshwater and saltwater biomesÃand how you can tell them apart.

Learn more about what lives--and what thrives--in marshes with this fill-in-the-blank worksheet on marsh ecosystems.

Dinosaurs and other creatures don't exist anymore! Learn the names of some extinct animals, and look for them in this fun wordsearch puzzle.

Help your child learn about one of the most elementary elements, gold.

Help your child get to know an elementary element with this worksheet about iron.

Help your child get to know his elementary elements with this handy worksheet on copper.

Help your child get to know the most elementary of the elements with this handy worksheet on silver.

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

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

Did you know that invertebrates don't have backbones? Find out some different types of invertebrates with the clues in this crossword puzzle.

Use clues to fill in the boxes in this crossword puzzle, and learn more about freshwater fish along the way.

Find out more about what REALLY dwells in swamp ecosystems with this worksheet all about swamps.

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

Quiz your kid on the names of bones in his spine with this colorful worksheet.

Find out more about single-cell organisms with this coloring page and diagram.

This bright and colorful worksheet helps your child bring the technical terms of the bones in his legs down to size.

Teach your fifth grader about this important bony structure with a fill-in-the-blank skull diagram.

Don't let school year learning slip away this summer: use this chemistry worksheet to practice identifying elements.

This worksheet gives your fifth grader some skeleton know-how, as she fills in the diagram with the bones from the wrist to the fingertips.

This kid-friendly, fill-in-the-blank diagram helps your fifth grader learn the technical terms for the bones in his torso.