In this experiment you simulate radioactive decay in order to gain an understanding of the basics of half-life.

Demonstrate how tracks are formed by pressing your hand into a cornmeal mixture, then reverse the process and make prints of the track.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

This science fair project idea shows kids how to grow mold and whether mold grows better in dry or moist conditions.

The purpose of this science fair project is to investigate which food wrapping works best to keep refrigerated and non-refrigerated foods from spoiling.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

The objective of this science fair project is to examine the cleanliness of salad preparation techniques.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Your preschooler will engage their senses by making a scented pumpkin to decorate your house.

Science fair project that uses iodine solution to demonstrate how starch is turned into sugar when it is chewed in the mouth.

Invite your kindergarten scientist to conduct this color mixing experiment to discover which primary hues make a rainbow of secondary colors.

Did you know a mouse eats almost fifty times as much as a cow? Find out how and test out the strange science with your friends!

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

In this fun experiment, we'll find out how color affects heat absorption!

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

Which bread molds fastest? Explore the different kinds of breads and how quickly they mold, along with the role of preservatives.

This science fair project idea explores if male or female humans are more likely to exhibit some form of color blindness.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

This science fair project teaches students about wilting and browning of salad greens.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This experiment will explore the best way to create a perfect soft-boiled egg.

Determine if picking up fallen food in 5 seconds or less prevents the transfer of bacteria from the ground.

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.