Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Using a toy race car kids create a visual model of the Doppler Effect.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

Making your own glass cleaner is easy, effective and inexpensive!

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

Plants and light seem to be good buddies, but how far does the friendship really go?

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.