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How cool are chromosomes? Read what Steve the savvy scientist has to say about chromosomes and genes before testing your knowledge with some fill-in-the-blanks.

What does the pancreas do? Kids will check out the diagram, read a paragraph, and put their reading comprehension skills to the test by filling in the blanks.

Did you know that sound is actually caused by movement? Vibrations of particles create the sound that we hear.

Energy is a crucial part of physical science! All things on Earth have energy, whether it's potential or kinetic.

Have you ever felt the sting of rug burn or rope burn? That's friction at work! Learn a bit about this important physical force with a comprehensive worksheet.

Introduce children to photosynthesis with this fill-in-the-blanks life sciences worksheet!

Get to know your genes with Steve the savvy scientist! Genes help determine everything from your hair color to your height.

Discover how water flows in this informative environmental science worksheet!

Did you know there are clouds in space? They are very different than the ones on Earth! Read a bit about nebula in this space science worksheet.

Get a brief history of the atom with this introductory page for young physicists!

Discover how cover crops enrich soil and support healthy crop growth with this research-based worksheet for fourth and fifth graders!

Explore one of the great mysteries of the universe with this space science worksheet on black holes.

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

Learn what distinguishes a meteoroid, meteor and meteorite with this outer space science sheet!

Dive deep into your body's circulatory system with this worksheet on blood and what it's made of.

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

What happens to water after it rains? Learn about the stages of the water cycle in this colorful worksheet!

Use this lightning diagram to go along with what your child is learning about weather systems in school!

What is Pluto? According to scientists... no, not quite. Find out more behind the answer to that age-old question.

Do you know what the thyroid does? Learn about our body's largest gland with this human anatomy info sheet.

Have your little chemist think about the properties, or characteristics, of metals. What makes them different than non-metals?

What is the difference between a solar eclipse and a lunar eclipse? Find out with this stellar space science worksheet!

What is the purpose of a narwhal tusk? Explore some interesting new findings about the narwhal, also known as the unicorn whale.

Learners will discover what heat waves are, and how they are connected to global warming, in this two-page earth sciences worksheet.

What is the difference between condensation and evaporation? Learn about natural cooling and heating processes that are caused by changing states of matter!

What's the animal that swims upstream? Help your child figure this out with this cold-blooded animal crossword puzzle worksheet.

Do you know what DNA is? Steve the savvy scientist has the answers! Join this wacky scientist as he explains the basics behind our DNA and our genes.

We all know the famous equation E = MC^2. But what does it mean? Learn a bit more about Einstein's famous energy equation with this physical science worksheet.

What makes for healthy lungs? Kids can use the labeled diagram of the human lung's different components to complete the word scramble at the bottom of the page.

Read up on the digestive system with this page, which follows your food from start to finish.