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

Did you know opossums are marsupials, which means they have a pouch! This fun worksheet is jam-packed with fun facts about the opossum!

Learn about the science behind one of nature's most awesome spectacles: monsoons.

Get swept up in this comprehensive worksheet about the awesome power of dust storms.

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

Analyze an axolotl with this kindergarten and first-grade worksheet!

Explore everyday forces with this first- and second-grade science worksheet!

Observe different forces at work with this kindergarten and first-grade worksheet!

Illustrate each season with this engaging first- and second-grade weather worksheet!

Match baby animals with their parents in this kindergarten and first-grade worksheet!

Practice identifying living and nonliving things with this first- and second-grade science worksheet!

Learn about food chains in this cut-and-paste worksheet for first graders!

Build a food chain with this hands-on worksheet for kindergarteners and first graders!

Space enthusiasts will love learning about Freedom 7, the first manned American space mission.

To complete this worksheet your first grader will need to match the different animals with their homes.

Design a helmet from household objects in this engaging first- and second-grade activity!

Say hello to the red-eyed tree frog in this kindergarten and first-grade worksheet!

Teach your curious first grader the names of all his different teeth with this informative worksheet!

Prepare for an exciting experiment with this cut-and-paste lab safety worksheet for first and second graders!

Help kindergarteners and first graders learn the parts of a plant with this coloring worksheet! 

Get to know the platypus with this fill-in-the-blank activity for kindergarteners and first graders!

Match each animal to its home in this first- and second-grade life science worksheet!

Identify examples of pushes and pulls with this cut-and-paste worksheet for kindergarteners and first graders!

Study the traits of desert plants with this cut-and-paste worksheet for kindergarteners and first graders!

First graders can learn about the planet Venus and label its layers in this simple and engaging exercise!

Determine whether items are hot or cold in this cut-and-paste activity for kindergarteners and first graders!

Get to know the basic parts of a plant with this first- and second-grade life science worksheet!

First graders can read the information about Mercury then label each layer of the planet using what they've learned.

How do nonliving things help plants and animals stay alive? Find out in this first-grade worksheet!

Discover some of the ways that Earth’s natural resources are used in this first-grade worksheet!