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In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Build a magnetic linear accelerator using a ruler, neodymium magnets, and small metal balls in this fun science fair project exploring magnetic propulsion.

In this activity your child will create their very own marble maze!

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

The purpose of this science fair project is to determine whether Green Bags, with or without refrigeration, are most effective in preserving food.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

Determine how we can separate the components of a solution

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Science fair project that examines learn how the angle of incidence affects the efficiency of solar panels. How does a solar cell work?

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

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

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

This conservation of energy demonstration shows why the first hill is the highest on a roller coaster. Learn more about potential and kinetic energy!

This optics-based science fair project idea teaches kids about real and virtual images with a mind-bending candle illusion inspired by Pepper's Ghost.

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

This project concerns activity happening millions of miles away, on the sun.

How good are humans at sound localization? Kids can try this cool science fair project idea to see how good their friends are at judging sound direction.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

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

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

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.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.