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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.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

Test the combustion of different types of woods.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.

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

This project compares the national anthems of several different countries to determine if there is a correlation between tempo and a country's latitude.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

This science fair project compares the allelopathic affects of juglone, a chemical agent produced by the Black Walnut tree, on two plants.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Evaluate the efficacy of different pain management techniques.

Plant sunflower seeds , measure height, calculate average height, compare size and weight of heads. Interpret findings in detailed report.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Science fair project that compares the properties of different fabrics to determine whether natural or synthetic fabrics are better at wicking away moisture.

Is exercise a cellular activity? Check out this fun science fair project idea to compare the carbon dioxide production before and after exercise.

The objective of this project is to evaluate whether a top will spin at different rates during different phases of the moon.

The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

This preschool activity uses paint chips to help your child learn about different shades of colors and how to find different colors in nature.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.