Find out whether a longer airplane will fly farther or a wider paper airplane.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

This science fair project idea explores whether white light can be separated into different colors.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Science fair project idea examines validity of mood ring predictions. Analyze accuracy of results, consider the impact of temperature

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Take a dive into the candy jar with this yummy science experiment.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this science fair project, students focus sunlight with a magnifying glass and trap shorter waves to melt ice.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!