Use this fossils worksheet to help a child learn about life on earth. Your child will learn about evolution and extinction, and also form a hypothesis.

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

Help your child learn about facts and opinions in this animal-themed worksheet! Students will read sentences and decide whether they express facts or opinions.

Help your child learn about facts and opinions. Kids will read statements about animals before determining whether each statement is a fact or opinion.

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

Filling out this spider diagram will be much less scary than running into these creepy crawlers in real life. Fill in the body parts from the work bank.

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

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

With this diagram, kids can find out more about oil, one of our most widely-used natural resources, and learn a little more about where it comes from.

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

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

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

Learn more about a tide pool habitat with this life science worksheet for second and third graders!

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

Do you know why Mars is called the Red Planet? Find out that and more on this planet printable.

Learn more about the swirling, whirling science behind tornadoes with this wild worksheet.

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

Learn more about the imposing tsunami with this worksheet about the science of tsunamis.

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

Learn more about the mysterious brain and how it works with this brain anatomy worksheet.

Did you know that 763 Earths could fit inside Saturn? Learn more fun facts about Saturn on this fun science printable.

Learn more about the skin (and the science behind pimples -- ew!) in this printable life science diagram.

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

These "Dig It!" worksheets not only teach about life on earth, they teach the scientific method as well.

Kids find desert animals in this science word search. Animal habitat worksheets help students learn about life forms in different environments.

What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

Learn more about molecules and how they comprise the air all around us in this intro-to-earth-science worksheet.

These clever birds harden and disguise themselves as tree branches when threatened. Learn more and do some coloring with this worksheet.

There's not much in the animal kingdom more interesting than tentacles with suckers! Learn about octopus anatomy with this worksheet.

Learn more about the bones in your body and just how important they are with this reading sheet and diagram, all in one.