Facts about ostrich include that they are the largest birds in the world and that they can't fly, but that's not all. Learn all about this amazing bird!

Children will connect their understanding of gases to real-world items as they circle all of the pictures showing gases.

Fact: This worksheet is about unusual animals from all over the world. Opinion: This is the best fact and opinion worksheet ever!

From the blue whale to the Tasmanian devil, our planet is full of fascinating animals. Find a few of the most interesting ones in this animal word search.

Help your little learner understand the concept of buoyancy with this fun worksheet. He'll decide which items will keep this frog afloat!

Dive into habitat studies with this second- and third-grade worksheet!

These are the largest tortoises in the world, yet they are only two inches long when they hatch! That's one of the facts you can learn from this worksheet.

Learn about spider tortoises, one of the world's tiniest tortoise species, with this handy worksheet. Can't go to the zoo? We bring the zoo to you!

You have a lot in common with all the other humans on this planet. You all have noses and arms and fingernails, but what makes you different?

Get all the Tasmanian devil facts on this worksheet, from what they eat to how they got their name.

What makes a reptile different from an amphibian?  Learn all about animal classifications in this worksheet for second and third graders!

All living things go through many changes as they grow to be adults! Help your little one understand how he will grow and change.

The earth is always changing and moving.Learn all about weathering and erosion with this worksheet.

What's your favorite animal? Kids love answering that question, and with this animal research graphic organizer, they can write all about it.

Get some cool facts about geckos on our reading and writing worksheet! Your little one is sure to be tickled by all the curious facts about geckos.

Crank out a better understanding of simple machines with this worksheet all about the wheel and axle!

Little scientists can learn about a fundamental concept of physical science with this worksheet all about density!

How do you make recycled paper? Learn all about the recycling paper process on this informative worksheet.

Learn all about the cumulonimbus cloud, more commonly known by a much more fearsome name: the thundercloud!

Take a look and learn all about this beautiful and rare tiger from the islands of Sumatra in Indonesia.

This page is all about building your kid's natural resources vocabulary words, along with research skills.

Teach your child all about the growth cycle of carrots, those bright orange veggies found on dinner tables everywhere.

Ever wonder how the flying squirrel actually flies? Give your child a great coloring page, all about the flying squirrel!

All living things have a life cycle. Learn about the different stages that a bird goes through from birth to adulthood!

This spikey Stegosaurus looks fierce, but don't worry -- he's a vegetarian! Learn all about this massive dinosaur with a fun fact sheet.

All living things go through cycles. Learn about the life cycle of an amphibian with this diagram of the life of a frog!

All of these products are made from plants, or they can be! Practice using a Venn diagram, researching and classifying items with your kids.

Engage your little scientist with a fun word search, all about sinking and floating! He'll be learning a basic concept of physical science.

All living things need water to survive. Listed are some of the ways we use water: can your child think of others?

In 2012, an 80 million-year-old dinosaur was discovered, and you can learn all about this 20-foot, 2-ton horned herbivore.