This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.

This experiment investigates whether left-handed test subjects have better memories than right-handed participants.

This science fair project idea determines whether land or water warms more quickly and investigates how solar radiation increases the temperature of surfaces.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

This science fair project idea measures and compares effects of chemical weathering, specifically carbonation, on different kinds of rocks.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Explore joule heating and resistance vs. temperature with this cool electricity science fair project that gets kids melting ice cubes with resistors.

This science fair project explores discover whether the acidity of sour candy is comparable to that of battery acid.

Demonstrate the capillary function in plants by adding food coloring to glasses of water. Slice stalks of celery and leafy tops. Compare color of leaves

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

This social science experiment endeavors to determine whether certain types of animals provide greater physical and mental health benefits to their owners.

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Science fair project that determines how we can change potential energy into kinetic energy.

This science fair project idea identifies clouds as a means of predicting the weather.

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

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

This science fair project idea examines which type of insulation holds in the most heat.

This experiment will explore the best way to create a perfect soft-boiled egg.

In this cool psychology experiment, study how companies air commercials to strategically advertise to viewers who will buy their products.

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

This project involves the development of a website using free software online to promote the value of science.

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Check out this fun science fair project idea to explore the process of diffusion in a cell and learn the difference between osmosis and diffusion.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.