The project compares three different methods of testing turbidity in water: the secchi disk, spectrophotometer, and turbidity test kit.

Let your kid experiment with textures among fabric and other materials that are smooth, rough, soft, or slippery—and then they'll make a texture book!

Do different types of oil mix or stack? Find out in this science fair project idea!

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

How do search engines work? What makes various search engines different? This project delves into the world of web crawlers, caching, indexing and algorithms.

In this science fair project, we will test how different kinds and shades of hair respond to bleach.

Melt the ice, but save the lawn. The objective of this science fair project is to explore the effects of different substances on melting ice.

Kids make strong bubbles to investigate the effect different additives have on bubble life in this cool science fair project idea.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

Air resistance is a crucial factor when designing a parachute. In this science fair project, students find what type of material works best as a parachute.

This experiment explores how microwave radiation affects fungi, bacteria, and plant life.

This project will examine the relationship between materials and air resistance.

Demonstrate which cooking method gets rid of the most fat.

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

Will male or female hair grow faster? Find out in this science fair project idea!

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.

Science fair project about different digital image file types, compares different encoding algorithms used to compress the data.

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

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

Test the combustion of different types of woods.

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

Science fair project that demonstrates how a rainbow forms, by using water to split white light into its many colors.

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

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

Test the placebo effect in different groups of people.

Evaluate the efficacy of different pain management techniques.

How do crystals form? In this science fair project, students will use three different saturated solutions to see how different minerals form crystals over time.

In this experiment, you experiment with laser jet toner, a magnetic fluid, as it moves, bubbles, and forms unique shapes.

Determine if gender affects the ability to identify different smells.

This science fair project idea explores the different properties & interactions of sugar molecules.