Physical Science

Kids learn how to make a simple electric motor in this great engineering science fair project that teaches them how current generates its own magnetic field.

Check out this cool and free middle school science fair project idea on how to make a solar oven.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

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.

In this project, you'll create Oersted's experiment, which relates to how electric currents create magnetic fields.

This science fair project idea explores if an LED light can be powered by vegetables and/or fruits.

Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!

This project explores the effectiveness of various common household ingredients in cleaning tarnished and oxidized coins.

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

Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.

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.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

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.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.