Do people only "hear" what they want to hear? Explore pareidolia and psychoacoustics with this easy science fair project that pits melody against white noise.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

This experiment investigates if small changes in your diet can alter your basal body temperature.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Design a hearing protection device to protect their ears from loud noises. Examine the properties of current protective hearing devices, materials.

In this science fair project caffeine will be extracted from Gunpowder Green Tea, illustrating the isolation of a naturally occurring product from a plant.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This science fair project idea examines various dead zones and investigates the cause and how it can be fixed.

This experiment investigates whether the primacy effect is observed more frequently in specific populations of people.

This project examines whether humans can intuitively grasp numeric values greater than three.

This high school science fair project investigates if small changes in your diet alter the pH of your saliva.

This experiment will explore if a randomly iterated algorithm will result in a pattern.

Explore the wattage of microwaves in relevance to cooking time.

Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This experiment evaluates whether a personâs dominant hand is more sensitive than their non-dominant hand.

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

This project examines what types of objects burn and which burn faster and cleaner.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Determine which material produces the strongest static charge.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

This science fair project idea demonstrates sonar mapping of the ocean floor.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This science fair project evaluates which sense produces the fastest response time: hearing, touching, smelling or seeing.