Little scientists will make inferences about hearing loss, pitch, and frequency in this great science fair idea that puts the human ear to the test.

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

The objective of this science project is to determine the relationship between carbon dioxide gas and the temperature of the atmosphere.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

Help your curious kid cut through the clutter and collect the facts with a simple and fun science foldable.

This simple experiment serves as an introduction to the greenhouse effect.

Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

This science fair project idea measures physical dexterity as a function of temperature.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

This science fair project idea investigates food preference of birds.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

This project examines the concentration of dissolved oxygen in water, with and without oil.

How does bleach kill bacteria? Kids find out in this impressive bacteria science fair project by testing different concentrations on a safe strain of E. coli.

This project concerns activity happening millions of miles away, on the sun.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.