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!

Test your knowledge of electrical energy with this third- and fourth-grade worksheet!

Are chickens mammals, fish, or birds? Sort animals by their traits in this informative life science worksheet!

Ready for liftoff? Take to the starry skies with this worksheet that explores the three basic types of galaxies.

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

This Louis Pasteur biography goes over his accomplishments, and includes a bacteria-based science activity at the end!

Learn facts about Venus, the planet that shines the brightest in our night sky! Then practice your knowledge of the solar system with bonus trivia at the end.

Hypothesis, observation, data...with so many terms, learning the scientific method can be tricky. Learn the steps by helping Dr. McSquare sort out his reports.

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

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

This is not your average coloring page. Using only the three primary colors, mix your paints together to form as many colors as possible.

Consider the factors that affect magnetic forces in this informative third- and fourth-grade worksheet!

What is a plateau? What's the difference between a butte and a mesa? Look at these three land forms and learn to tell them apart with this worksheet.

Are cats trying to talk to us when they purr? Discover the meaning behind the purr in this worksheet that explores the three main types of cat purrs.

Look up into the night sky, and you may see three prominent stars side by side. This is Orion's belt, one of the most well known constellations!

Unearth fossils in this explorative third-grade worksheet!

How do the Sun and the Moon interact with the Earth, and how do all three depend on one another? Find out in this science worksheet.

Learners will discover a simple overview of the human muscle system in this introductory worksheet.

Use your powers of prediction to project the future movement of playground objects!

Help third and fourth graders become rock stars with this informative geology worksheet!

Learn more about the swirling, whirling science behind tornadoes with this wild worksheet.

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

This science worksheet tells all about James Watt, the man that powered the Industrial Revolution.

What is geothermal energy? Find out how we use parts of the Earth to provide us with renewable energy!

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

Nature is all around us! But how much does your child know about our natural world? Test her knowledge with some nature fun-facts trivia.

Learn all about the science of the movies and the basic concepts behind how they work.

Dive into the deep, vast world of ocean science with this introductory sheet on the world's different oceans.

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

Dive into the electrifying concept of electrical energy in this colorful worksheet!