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Showing 1 - 5 of 30 Project Ideas
Bring on the Heat! Investigating Exothermic Reaction Rates
Bring on the Heat! Investigating Exothermic Reaction Rates
Difficulty
Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items are required. See the Materials & Equipment list for details.
Cost High ($100 - $150)
Safety Adult supervision is required. Use caution when working with the oxygen canister.

Have you ever pulled a muscle or just been sore after a long day of work or exercise? Hot showers are great, but maybe you've used the more convenient heat packs. Heat packs, which you can buy at grocery or drug stores to soothe aching muscles, use exothermic reactions to produce a low level of heat that lasts for an extended period of time. Exothermic reactions change chemical energy into heat energy. In this chemistry science fair project, you… Read more
Charles's Law: Volume vs. Temperature of a Gas at Constant Pressure
Charles's Law: Volume vs. Temperature of a Gas at Constant Pressure
Difficulty
Time Required Short (2-5 days)
Prerequisites None
Material Availability Specialty items
Cost Very Low (under $20)
Safety Minor injury possible: this experiment involves heating water on a stove. Adult supervision recommended.

This is a modern version of a classic experiment by Jacques Charles on the volume of a gas at different temperatures. Charles discovered the relationship between volume and temperature of gases that now bears his name. This project shows you a simple method for re-creating this famous experiment. Read more
Chemistry of Ice-Cream Making: Lowering the Freezing Point of Water
Chemistry of Ice-Cream Making: Lowering the Freezing Point of Water
Difficulty
Time Required Short (2-5 days)
Prerequisites Understanding the concepts of molecular weight and moles. Access to a gram balance accurate to 0.1 gram.
Material Availability Specialty items
Cost Average ($40 - $80)
Safety No issues

Have you ever made your own ice cream? If you have, you probably surrounded the ice cream container with ice and rock salt to get the mixture cold enough to freeze. But why does that work? How does adding salt (or other substances) affect the freezing point of water? Find out with this ice-cold science project. Read more
Do Oranges Lose or Gain Vitamin C After Being Picked?
Do Oranges Lose or Gain Vitamin C After Being Picked?
Difficulty
Time Required Long (2-4 weeks)
Prerequisites Ideally you'd have your own citrus tree with ripe fruit for this project. The second-best option is to use citrus fruit from a store.
Material Availability Specialty items
Cost High ($100 - $150)
Safety Adult supervision required

Are oranges highest in vitamin C when they are fresh from the tree (or, in a pinch, the grocery shelf)? In this project you'll learn how to measure the amount of vitamin C in a solution using an iodine titration method. Read more
Electrolyte Challenge: Orange Juice Vs. Sports Drink
Electrolyte Challenge: Orange Juice Vs. Sports Drink
Difficulty
Time Required Short (2-5 days)
Prerequisites None
Material Availability You will need a digital multimeter for this science fair project. See the Materials and Equipment list for more details.
Cost Average ($40 - $80)

The makers of sports drinks spend tens to hundreds of millions of dollars advertising their products each year. Among the benefits often featured in these ads are the beverages' high level of electrolytes, which your body loses as you sweat. In this science project, you will compare the amount of electrolytes in a sports drink with those in orange juice to find out which has more electrolytes to replenish the ones you lose as you work out or… Read more
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