This science experiment tests whether warm or cold water works best in making cut flowers last longer.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

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

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Discover whether cold or hot water from the faucet will boil faster on the stove.

This science experiment tests if dog saliva can really help heal wounds.

Test whether plants can grow without sunlight and water.

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

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

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

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.

The objective of this science project is to determine the length of time for different seeds to germinate.

The goal of this project is to create an exciting topographical map out of dough.

In this activity, students will be challenged to describe and count the ways a toy moves from one position on a grid to another.

Learn whether writing things down really makes things easier to remember.

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!

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea explores how length affects the weight a bridge can hold.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Watch pre-packaged seeds and seeds taken from inside fruits and vegetables grow. Which ones will grow faster? Read more in this science fair project idea.

In this science fair project, students create their own miniature salt flats at home.

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

What is biodiversity? Kids will study different areas of their backyards to see which is the most diverse to learn about biodiversity and random sampling.