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Science fair project that examines oxidation, reduction and chemical indicators by testing for the presence of the iodide in salt.

This experiment investigates if small changes in your diet can alter your basal body temperature.

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

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

Free science fair project idea that measures change in flexibility with age, using a variety of flexibility tests like Sit & Reach.

Can cells be frozen? This science fair project provides information to answer this question.

This science fair project idea determines whether dogs can be trained faster using a food reward or praise.

In this project students experiment with making music using only glasses of water.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Science fair project that creates a pamphlet to help others learn about Epilepsy, its causes, symptoms and treatments.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

This science fair project idea measures physical dexterity as a function of temperature.

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

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

This experiment will explore the possibility of creating an infinite object by hand.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

This experiment investigates whether font choice affects peoplesâ ability to remember the information that they read.

Find out whether matte or shiny nail polish lasts longer.

Construct and experiment with a periscope using reflected light rays to gather an image.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

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

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.

Plants and light seem to be good buddies, but how far does the friendship really go?

What are the benefits of good posture? Kids will learn about the cognitive effects of good posture through conducting and observing a controlled experiment.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Science fair project that demonstrates that rotting food attracts insects that lay eggs on it.

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.