Budding scientists will learn about the density of salt water and perform an experiment with food coloring, salt water, and fresh water.

This worksheet teaches your student about physical change vs chemical change, matter, mass, and property. An exciting experiment reinforces the concepts.

What is the water cycle? We're glad you asked! Learn about this amazing natural system that's been working for billions of years.

Help your child get to know the most elementary of the elements with these handy worksheets.

Test your students' knowledge and memory of periodic table elements with this crossword puzzle.

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

Did you see the announcement in 2016 about new elements added to the periodic table? Put these new periodic elements flashcards in your study toolkit.

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

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

Who knew that the machines of the world are all made of just 6 simple machines working together? Introduce your child to simple machines with this worksheet.

Did you know that the screw is actually one of the six simple machines? This handy machine helps to make work easier!

Wedge your way into physics fun! You and your child can learn a bit about one of the six simple machines with this worksheet all about the wedge.

Pull the lever on learning! Get to know one of the six simple machines with this worksheet about the lever.

Introduce your child to the inclined plane, one of the six simple machines that helps to make work easier for us!

I spy with my little eye... six simple machines! Here's a fun way to help your child review the simple machines.

How many machines can you find around the house? You may find them where you least expect it!

Budding inventors can get a fun review of the simple machines with this word search.

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

Read about Alexander Graham Bell, the man who made it possible for us to stay connected all day long, in this biography that comes with a science experiment.

Is your fourth grader learning about electricity? This worksheet is all about circuits, tests her skills and reinforces the concept of how a circuit works!

Discover the science behind an ages-old 4th of July tradition with this firework diagram.

A lot of common objects use electromagnets to work. This word search will get your child thinking about all the electrical and mechanical devices around her!

Without light sources, we wouldn't have any light. Can you imagine a world without any light sources?

Light travels so quickly that sometimes we can forget it even travels at all. Learn all about the direction light travels and perform your own experiment!

Introduce your flashlight to mirrors. Mirrors are cool surfaces that reflect light just as well as they reflect your face.

Without reflective surfaces, this biker would have a much more dangerous ride. Can you find all five reflective surfaces present in this scene?

Did you know that light could bounce? Set up a light obstacle course with a few mirrors and watch light bounce around your room.

Find out all about the different parts of the eyes and how they work together to make vision possible.

Grab your trusty flashlight and get ready for a scientific treasure hunt!

Learn all about light refraction by simply placing your pencil in a glass of water. Warning: your pencil may not be quiet the same afterward.