Showing Results for how when

Do you know how clouds form? Get the basic idea of how moisture in the air can become a cloud.

Let your curious kid learn a little bit about how fireworks work in this summer science sheet.

Do you know how tornadoes form?This science worksheet diagrams what is known about what causes tornadoes to form.

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

Our solar system has hundreds of moons! Read a bit about how a moon is formed with this lunar lesson.

How does blood flow through the heart? This worksheet prompts kids to map how blood is pumped through this sophisticated organ.

Color in this Awesome Anatomy page on the respiratory system and learn about how we breathe!

Color this Awesome Anatomy coloring page that focuses on how the ears work to hear sound.

The periodic table of the elements is full of helpful information. Figure out how to read the periodic table with this helpful guide.

Did you know plants make their own food? Discover how with this fill-in-the-blank worksheet for third and fourth graders!

Learn about pearls, which seem like normal jewelry from a factory but are actually made from the mucus of mollusks!

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

Ever wonder what causes lightning to strike? Explore the physics of lightning with this striking physical science worksheet!

Learn the ins and outs of one of the body's most important organs: the heart!

Discover the impact of water on Earth’s landscape with this fourth-grade erosion worksheet!

Find out everything you need to know about lightning rods! These metal poles have quite a special relationship with lightning.

Have you ever wondered why giraffes have long necks or why lions have sharp teeth? Find the answers in this third- and fourth-grade worksheet about adaptations!

Discover the connections between the sun, plants, and animals in this fifth-grade worksheet all about photosynthesis!

After he fills in the blanks, your student can hold on to this worksheet on hydrogen for reference when preparing for tests and quizzes on physical science.

Color in this diagram to see how a tree works and to better understand how many plants transport their "food".

It's a paper parachute brigade! Learn how to build your own parachute, and learn how the parachute was invented over 500 years ago.

It's easy being green when you have our Earth Day game for a guide. Just print out this Earth Day game and get ready to score one for the planet.

Young botanists test their plant know-how with this quiz.

Discover how water flows in this informative environmental science worksheet!

Learn all about how to convert centimeters to inches in this practice worksheet.

See just how connected the ears, nose and throat are with this anatomy worksheet!

Learn all about how to convert kilograms to pounds in this weight conversion worksheet.

This Awesome Anatomy coloring page shows how blood circulates through your body.

Learn how energy changes forms with this fourth- and fifth-grade physical science worksheet!