Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This project investigates the affect of storage temperature on microwave popcorn.

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

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

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

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

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Discover whether a metal will expand under hot water.

In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.

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

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

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

In this science fair project you will make a model of a cell membrane using very simple material.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.