These math cards are printable quiz cards to challenge your first grader's overall knowledge.

Megalosaurus was a giant carnivore similar to Tyrannosaurus Rex. Learn about this classic dino with a dot to dot coloring page.

How much do you know about our solar system's planets? Kids learn facts about Neptune in an out-of-this-world worksheet.

Did you know that an elevator is actually one of the six simple machines? Help your child understand how the pulley works.

This friendly-looking penguin is cute enough to cuddle, but your kindergartener can start by filling out this chart of penguin parts.

Explore the circle of life with this informative coloring sheet! Help your student color and learn the names of each stage of a grasshopperâs life.

Does your child know his five senses? Give him an introduction to human anatomy with this sense of touch worksheet.

How do you think our universe will end? With this worksheet, explore some of the common theories, and then come up with some of your own!

Explore the different body coverings of animals with this fun coloring page.

Next time you're outside, go on a treasure hunt with this activity from PBS KIDS' Dinsosaur Train. Then, write all about your nature treasure loot!

Step up to the controls, Dr. Frankenstein -- the world is in need of a new creature!

Practice your detective skills with this fun worksheet! Have your child go around the house and see how many things from the list they can find.

Learn about the parasaurolophus, one of the most musically inclined dinosaurs with this dot-to-dot coloring page.

Can you tell which types of weathering caused each of these changes in the earth? This activity is a great way to review the 3 main types of weathering.

Watch your little zoologist color, cut out, and play with these delightful bobcat, roadrunner, and rattlesnake finger puppets.

Learn about the California tiger salamander, which uses its toxic, bad smell as a defense.

Teach your child a basic concept of physical science with this worksheet all about buoyancy! He'll choose which items are buoyant and which are not.

This helpful worksheet lays out all the qualifications for planethood. A great way to start studying outer space science!

Jump into science with a lesson in our sense of hearing with this coloring page that asks kids to color the pictures of things they can hear.

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

Young inventors will have a blast with this worksheet on compound machines! Use three of the six machines together to make work easier.

This word search introduces your child to important rocks and minerals vocabulary, as it strengthens his attention to detail.

Help your child get to know an elementary element with this worksheet about iron.

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

Learn all about the liver with this anatomy sheet. Our liver is one of many organs in the digestive system expelling waste from the body.

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

This worksheet features Uranus facts. Did you know this planet is blue and spins on its side?

Children get to know a few geology terms in this landform word search puzzle.

Here is a brief introduction to The Great Pacific Garbage Patch for kids!

Do you know how Tsunamis are formed? This worksheet shows the physics behind tsunami formation.