Identify the appearance of the moon during its three main phases which include the New Moon, Quarter Moon, and Full Moon.

How did salt ever get into the ocean? Find out how, and then try conducting your own salt water experiment.

Find a definition of what "natural resources" are, and complete the natural resources word search. It's a good vocabulary warm-up!

Learn how sand dunes form, and a little bit about desert formations like yardangs as well, in this science summary sheet.

Can you figure out how the Triceratops got his name? Study this Triceratops fact sheet and see if you can guess.

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

Challenge your child' memory skills with this colorful worksheet. This fun printable will help with memorization skills and spatial awareness.

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

Use these STEM design challenges to foster creativity and critical thinking skills in young learners while introducing them to the engineering process.

Find out how scientists explain our yawns and use the graph to keep track of your family's yawns for a whole day!

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

This worksheet features Mercury, the smallest planet in our Solar System, and also the planet that's closest to the Sun.

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

This worksheet helps kids understand variations in animals and how the same kind, or species, can sometimes look different from each other.

Learn all about the ooey-gooey areas of land called wetlands that provide a home for certain kinds of plants and animals.

For kids learning geography or earth science, this is the perfect review sheet for drilling students on common geography terms and phrases.

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

What does the Earth look like? Find out all about the nooks and crannies that cover the planet with this landforms worksheet.

Children learn to identify the tracks of a pine marten, chipmunk, mountain lion, mountain goat, and grizzly bear in this matching worksheet.

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

What is the Earth? Here is a reading passage and a word search to help your kid get acquainted with Earth science.

Learners will get to know the bald eagle, the national bird of the United States and an inhabitant of Yellowstone National Park.

Ecosystems are an important part of fourth grade science. This fun printable will help your child with her knowledge of plants and animals.

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

Go from a butterfly beginner to an expert with this worksheet, full of pretty butterflies and tons of information about where butterflies live.l

What is solar energy? Discover how we use the power of the sun, and complete this worksheet about an important renewable energy source.

Can you help Cornelius create a crazy compost concoction? Help your child review his knowledge of compost and recycling with this fun worksheet.

Are you afraid of spiders? Don't scream, this fun worksheet is jam-packed with interesting facts and activities, all about black widow spiders!

Did you know chameleons can sleep upside-down? Learn more about chameleons with this fun worksheet, jam-packed with fun facts and activities!

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