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This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

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

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

This science project examines the effectiveness of various types of laundry detergents on stains trapped on a white handkerchief.

Learn about the factors that influence group conformity.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea explores whether talking to a plant will help it grow.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

This project examines whether and what associations exist between numbers and letters and colors.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This middle school science fair project determines whether DNA is most easily extracted from under-ripe, ripe, or over-ripe strawberries.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

This science fair project determines the quality of a given product.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

This science fair project compares the abilities of men and women to understand subtle communication through body language.

In this science fair project, students examine how temperature affects sugar transport within a plant.

Looking for a fun earth science project on continental drifts? Check out this fun science fair project idea to explore how Pangaea may have broken up.

In this experiment we will be determining whether birds prefer certain colors of seed.

This project explores differences in people's reactions to images in color and images in black and white.

Leave your computer on 24/7. Will this lead to to more frequent crashes, freezes, and a slower processing speed? Find out in this science fair project idea.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?