Research different measurement systems, design your own new or improved system that can measure something difficult to measure with traditional systems.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

This experiment will examine and precisely measure the amount of sugar in various sodas.

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Science fair project that tests how well various sunscreens protect skin from the sunâs ultraviolet radiation by measuring their effect on sun-sensitive paper.

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Science fair project which tests which antacids are most potent by measuring how well they neutralize the acid in lemon juice.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

This science fair project examines the different composition of fungi and plants.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

The objective of this science project is to determine whether a sweet tooth is most likely an inherited trait or a learned behavior.

In this project, a basketball containing different psi is dropped to see how well it bounces.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

This study evaluates if electronic devices commonly found in most households emit radiation, and if they do, how much?

Science fair project that identifies the nature of ionic and covalent bonds and determines how ionic and covalent compounds differ.

Find out which type of sponge holds the most water.

In this science project, learn about soil porosity and measure the percent porosity of sand, silt, and clay.

Demonstrate which cooking method gets rid of the most fat.

Boost your preschooler's attention to detail by getting her to explore the differences between two different pumpkins: large and small.

This science fair project will help students learn about non-vascular plants, such as mosses.

This science fair project idea explores substances that cause a bubble to last longer.

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.

Free science fair project idea that examines the impact of gravity on a dropped carton of eggs. Design a device to protect the eggs from cracking.

Make an edible play dough with your child to help her develop her sensory and motor skills.