Check out this cool science fair project idea on spectrum spinners and investigate how certain color combination can produce other colors.

Study history of aerodynamics of arrow design to create a perfect arrow. Test arrows by shooting at an archery target.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

Consult astronomers for opinions and advice. Devise a mathematical argument regarding the probability of other planets supporting extra-terrestrial life.

Find out whether matching resonant frequencies can cause objects to shatter.

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.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

This science fair project investigates why the number of visible stars changes from place to place.

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

This project researches whether the type of land use affects the water quality of Queenstown Creek.

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.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

This science fair project idea will be examining oxidation and acid rain

This science fair project idea explores the different properties of matter.

Science fair project that explores the variety of webs that spiders weave and collect specimens for identification.

Devise list of randomly chosen words, test how many words volunteers can remember. Compare results of adults and children. Which have better memories?

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Research historic methods of food preservation. Analyze alternative recipes and techniques of food preservation. Document success with photographs.

Science fair project that creates fog using bottles of hot and cold water.

Research optical illusions and human auras. Understand why the probable cause of perception is mach bands.

Explore the negative and positive consequences of stereotypes.

This science fair project idea examines if there is a reason that musical notes are at the pitches they are.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Science fair project that examines the benefits of the plant enzyme: pectin methyl esterase (PME). Where is PME found in the plant? What does it do chemically?

This science fair project idea produces consumable fresh water from salt water through desalination.

This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.