Launch into learning with this worksheet on Gemini 4, one of the original missions in the early days of the U.S.'s space program.

Let your little weather observer discover the four seasons! She'll match up each season with its proper picture to show her knowledge of how weather changes.

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

Fossils have a lot to teach us about life on earth, but they can also be used to help teach kids the scientific method.

This short nonfiction text will provide students with an opportunity to become more comfortable with identifying and defining academic vocabulary words—and they'll have fun learning all about the life cycle of a chicken in the process!

Introduce the basic concepts of sinking and floating with this fun worksheet. Your budding scientist will decide if these objects sink or float!

How does the butterfly become so beautiful? Learn about the four stages that it goes through in its life.

Ever wonder what the earth is made of? Practice reading and writing, and learn about the four layers of planet Earth.

What are the different layers of soil? In this worksheet your child will use clues to identify four major soil components: silt, topsoil, humus, and clay.

Here are four examples of mineral resources for kids to think about, plus a short explanation of what a mineral resource is.

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

In this worksheet, children identify and illustrate four things all plants need to grow. They then answer three simple research questions about plants.

What a wonderful world word search! See if you can find all 10 of the Earth-related terms in the word search.

Do you wish to boldly go where no astronaut has ever gone? Blast off with this coloring page that features four new planets for you and your crayons to explore.

Discover the animals and plants of the past in this fossil-focused worksheet!

Can your child name 10 animals that make their home in the mountains? After completing this worksheet, he'll know all about mountain habitats!

Did you know some baby birds take 10 days to hatch, and some can take 80 days! Learn all about these cute creatures and finish your lesson off with a fun maze.

Discover different types of energy with this third- and fourth-grade science worksheet!

Learn to read a standard thermometer in both Fahrenheit and Celsius in this informative second- and third-grade worksheet! 

Match forms of energy to common examples in this third- and fourth-grade science worksheet!

Explore the applications of electrical energy with this helpful second-grade worksheet!

Connect forms of energy to real-life scenarios in this third- and fourth-grade worksheet!

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

Review the rock cycle with this second-, third-, and fourth-grade crossword puzzle!

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

Unearth fossils in this explorative third-grade worksheet!

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

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

See if you can identify the objects that let light pass through them with this kindergarten and first-grade worksheet!

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