Budding scientists will learn about the density of salt water and perform an experiment with food coloring, salt water, and fresh water.

This worksheet teaches your student about physical change vs chemical change, matter, mass, and property. An exciting experiment reinforces the concepts.

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.

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

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

Do you know which animal has two humps? Your child will use clues to determine what animal name fits in the crossword puzzle with this worksheet.

Help your child practice her spelling and vocabulary with this fun worksheet! Discuss with your child what it means to be cold-blooded.

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

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

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

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

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

Use the clues in this crossword puzzle to fill in the blanks with different types of snake names. Learn interesting facts about snakes as you go!

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

Budding biologists can learn all about human digestion with this information page, complete with a diagram of the digestive system.

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

Almost half of all known fish species call ponds, lakes, rivers, and other freshwater habitats home. Learn about freshwater fish in this worksheet.

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

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

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

The food chain is an important life science concept for fouth graders. This game makes it fun to learn!

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

This multi-page worksheet provides an opportunity for kids to practice both their understanding of food webs and their reading comprension skills.

This nonfiction passage helps kids develop reading comprehension skills, as well as learn important ecological facts.

Did you see the announcement in 2016 about new elements added to the periodic table? Put these new periodic elements flashcards in your study toolkit.

This skeletal system worksheet, featuring a funny diagram of a human skeleton, is just the thing kids need to master their skeletal system vocabulary.

Get to know the Apollo 11 space mission in this science and history worksheet!

Learn all about wildfires, a natural phenomenon looked upon with awe and caution.

Did you know that each tree tells a story? In this worksheet, children peer inside a tree to learn about the layers in its trunk.

Learn all about hurricanes in this earth science Q&A.