Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

Learn about the horizontal and vertical motion of a projectile in this cool physics science fair project idea for advanced middle and high school students.

Research overview of architecural acoustics. Design and build a whispering wall from wood or plastic. Test which materials work best.

Science fair project that studies how the brain transforms man-made symbols into meaningful concepts.

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

This activity allows your kindergartener to translate what they observe into a beautiful poem.

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

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Analyze competed scientific studies to determine the effectiveness of ancient remedies. Create a chart that illustrates the effectiveness of these treatments.

Science fair project that determines the effect of concentrated mental effort on physical performance levels.

The objective of this experiment is to evaluate the effects of acid rain on plants.

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

The objective of this science fair project is to observe the properties of friction and apply this knowledge to search for a near-frictionless surface.

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

Young physicists will wrestle with a discrepant event: the Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Kids build a rainforest food web to explore trophic levels in this cool science fair project for 4th grade.

Learn about our cognitive capacity of attention and to learn about factors that influence attention.

Study the effect of music on random rote memory. Examine the practical application of music in learning and education.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Learn about the Atwood Machine and Newton's 2nd Law with a pulley and masses of different weights in this physics science project.