Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

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

This project investigates several commercially decaffeinated tea types (black, green, oolong, white) for the presence of detectable traces of caffeine.

This science fair project determines which of two chemical agents can be used to release the drug (tea) from hydrogel crystals.

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

Demonstrate the principle of jet propulsion in this science fair project by building a rocket from household materials.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Science fair project which identifies the most effective insulator that you could use to make a winter coat by comparing how well cloth and cotton trap heat.

Explore which teeth-whitening products work best - Whitestrips or Whitetrays.

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

In this project, students will learn what and how foods are grown in rain forests and if there are sustainable methods that can be used.

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Assess physical and mental states of subject before and after drinking coffee. Compare initial expectations with their reported conditions.

This science fair project idea examines which is the best way to get rid of water stains (stains caused by just water) on fabric.

This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.

This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This project examines the vulnerability of fruit flies, Drosophila melanigaster, to irradiation. Will exposure result in mutations?

The purpose of this science fair project is to investigate whether cooking seeds before planting will speed up germination and growth.