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This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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.

Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?

Science fair project that compares the ecology of different soil samples by identifying which sample has the most invertebrates living in it.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

Use a dichotomous key to identify plants or animals.

This science fair project idea explores how much force is needed to move a lever at different distances from the fulcrum.

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

This science fair project idea focuses on saturated and unsaturated lipids (fats and oils).

Determine whether fresh vegetables have more calories or less calories than canned vegetables.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

Construct batteries that make electricity from fruits with this fun science fair project.

How do organic materials become soil? This science experiment measures what materials biodegrade.

This science project challenges high school students to study the linguistic evolution of text messaging.

Compare the ignition rates of various types of flame-retardant materials.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

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

This science fair project idea investigates how the shape of an object affects drag.

Do you hate to waste energy? In this experiment, you will design a machine that is powered by the process known as energy transformation.

This experiment will explore whether fractals really repeat themselves infinitely.

This experiment will explore if and where fractals can be found in the natural world.

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

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

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

Determine which seeds are most likely to survive harsh winter conditions (low temperatures).

Should you use âFITâ Fruit and Veggie Wash or plain water to wash your produce? Find out in this science fair project idea.