In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

In this project, waves of vibrations are experimented with using water in glasses.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

Find out whether a longer airplane will fly farther or a wider paper airplane.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

How well can people recall what they have observed. Test your knowledge in this fun experiment.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Kids will learn about the interaction of lactose and lactase in milk and discover why we describe enzymes as catalysts in this fun science fair project.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

In this project students experiment with making music using only glasses of water.

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.