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Create a double-slit interference out of cardboard. Produce an interference pattern that demonstrates the wave and particle characteristics of light.

Will people still feel hungry once they eliminate grains from their meal? Find out in this science fair project idea!

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

Explore convex and concave objects and how they reflect light.

Find out which kind of bubble wrap fares best when put in impact.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

This project examines whether sugar substitutes are as sweet as real sugar.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Determine the effect of reading aloud on memory skills. Prepare a list of randomly chosen words, ask volunteers to recall as many as possible from the list.

Science fair project that uses distillation to convert salt water into fresh water.

This science fair project idea explores whether the types and brands of faucet filters are relevant to their performance.

The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.

The aim of this science fair project is to examine the differences between brands of bottled water and analyze consumer preferences through a taste test.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

In this science fair project, students investigate how different colors influence appetite.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Science fair project that determines which types of clouds are best at blocking harmful UV radiation.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Learn about our response to scents that existed in our environment over evolutionary time and consider why scents might affect our mood state.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.

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

Discover whether ants are more attracted to natural cane sugar or artificial sweeteners.

Can you win a staring contest? Would your performance be influenced by your eyesight? Find out in this science fair project idea!

It has long been believed that weather influences mood and behavior. This experiment will evaluate if weather can really impact the way people feel.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.