Does your preschooler fancy herself a "bird brain"? Test her basic bird knowledge with this cute, cut-and-paste chart.

Test your child's knowledge of plant life--more specifically, trees--with this colorful, cut-and-paste tree chart.

Young botanists test their plant know-how with this quiz.

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

Quiz your kindergartener on feelings and the five senses with this cute picture test.

Is your little one into creepy crawlies? Test his bug knowledge with a fun crossword puzzle.

Test your kindergartener's understanding of the parts of a dolphin with this adorable, fill-in-the-blank dolphin chart.

Does your child love dogs? Test his knowledge on the different breeds of dog with some trivia questions!

Test your memory skills as you review the different types of animal body coverings with this animal memory match game!

Test your kindergartener's produce proficiency by challenging her to separate the fruit and veggies from other foods on this worksheet.

Learn all about the different jellyfish and then test your knowledge with the questions at the bottom of the page.

Guinea pigs are social animals that make great pets. Test your child's knowledge of these furry critters with this fun quiz.

Test your little nature-lover's knowledge about our feathery friends. Can she figure out which bird fits each description?

Has your child learned about the life cycle of a frog in school? Test his understanding with this cute cut and paste worksheet.

Are you aware of how many endangered species there are in the world? Use this trivia sheet to test your knowledge of some beautiful but endangered animals.

What does the pancreas do? Kids will check out the diagram, read a paragraph, and put their reading comprehension skills to the test by filling in the blanks.

Put your kid's observational skills to the test with this word search that will help her learn some of the animals that inhabit a rainforest.

Looking for quiz questions to test your first grader's general knowledge? This printable will challenge your kid's overall knowledge.

Test your third grader's biology knowledge with this worksheet, which challenges him to separate invertebrates from animals with a backbone.

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

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!

Reunite a family and their long-lost dog with the help of DNA testing in this middle-grade worksheet!

How much does your preschooler know about the parts of a flower? This colorful worksheet tests her flower knowledge!

Spot the saboteur by testing DNA in this exciting middle-grade worksheet!

Invite your kindergartener to fill out this elephant chart--testing her knowledge of an elephant's parts.

This worksheet tests kids' understanding of basic heredity by asking them to match parent turtles with their offspring based on similar traits.

Fill in the blanks from the words listed in the word bank, then keep this sheet handy to prepare for tests and quizzes on life science and photosythesis.

How cool are chromosomes? Read what Steve the savvy scientist has to say about chromosomes and genes before testing your knowledge with some fill-in-the-blanks.

Learn about the badgers that live in Yellowstone National Park.

Read about the mule deer, the most abundant deer in Yellowstone National Park.