Does your little gardener know about compost? Quiz him on the basic elements of this excellent gardening tool.

Ferrets are known for being sneaky, so don't be fooled by this quiz! Discuss this unique animal with your child as she learns some fun ferret facts.

Is your child crazy about snakes? Introduce him to the rosy boa with this fun and informative quiz.

This Earth Day quiz family and friends with this true or false questionnaire. It's all in good, informative, fun!

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

Did you know some people have little teacup pigs as pets? Learn all about these adorable animals with your child as she completes this fact-filled quiz.

Can your little geologist identify the three main types of rock? Test his earth science savvy with a matching activity.

Take a quick lesson in the otters that inhabit Yellowstone National Park and take an even quicker quiz.

Learn to identify and name the parts of a seed in this two-page science worksheet and quiz!

Quiz your little scientist on his knowledge of the soil layers! He'll be reviewing some important earth science concepts and key terms.

Think toads and frogs are the same? Think again! Check out this breakdown of the differences between the two, complete with a quiz to check your new knowledge.

Life on Earth is vast and varied, from high in the sky to the bottom of the sea. Learn more about what lives on Earth with this reading and quiz worksheet.

Why do some objects make loud sounds when dropped, while others make quiet sounds?

Encourage your child to take a nature walk, using the prompts on this worksheet to write and draw their observations of plants, animals, sounds, and more.

This worksheet features a scientific explanation and awesome photos of solar eclipses, which are extremely rare scientific phenomena.

Here's a thorough, easy-to-understand breakdown of the color wheel that includes primary, secondary and tertiary colors.

In this science matching worksheet, children will test their solar system know-how by matching each celestial body to the correct fact.

Learn about the badgers that live in Yellowstone National Park.

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

Get a light lesson in the darkest of creatures, the raven.

Animals need to adapt to survive! Teach your child how some animals can blend with their surroundings using camouflage.

Ancient mariners mistook the manatee for a mermaid! Your young biologist won't make the same mistake after learning about the manatee with this worksheet.

Learn about the amphibians and reptiles of Yellowstone National Park.

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

Pigs, cows, and ducks, oh my! The clues in this animal crossword puzzle worksheet will help you remember what animals there are on a farm.

Read about a little-talked-about bird that inhabits the wetlands of Yellowstone National Park, the sandhill crane.