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.

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

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

Students flex their physical science knowledge by classifying items as solids or liquids in this fourth grade states of matter worksheet.

Which comes first, genus or phylum? To complete this life science crossword, kids need to put the 9 levels of biological classification in the correct order.

Determine which magnets have the strongest force in this third- and fourth-grade worksheet!

Dig into the past with this third-grade worksheet all about fossils!

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!

Do you measure distance in inches or seconds? When do you use miles? Answer these and more with this third-grade worksheet about the customary system of measurement! 

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

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

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

In this North American animal tracks worksheet, students hone their observation skills by matching tracks to animals.

Learn about some of the most common forms of energy with this helpful one-pager for third graders!

Use a seesaw to see what happens when opposing forces become balanced or unbalanced!

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

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

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

Read about one of Yellowstone National Park's coolest animals, the big horn sheep.