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What is the pH of rain in your area? Students take pH measurements for rain in their neighborhood and compare it with other students' findings. This activity is best when conducted over several weeks during a rainy time of year.
Difficulty: Middle school
How much starch do common foods contain? How can we measure this?
Difficulty: Middle school
Do different brands of popcorn leave different amounts of unpopped kernels?
Difficulty: Elementary school
The pineapple fruit contains the protein degrading enzyme bromelain, which is extracted and sold in such products as Schilling's Meat Tenderizer. Papaya contains a functionally analogous enzyme.
Difficulty: High school
One thing you'll learn in this experiment is that yeast does, in fact, produce carbon dioxide gas.
Difficulty: Middle school
Many recipes call simply for baking soda rather than baking powder. Usually these recipes use some kind of liquid acid like buttermilk or yogurt to react with the baking soda to produce the bubbles.
Difficulty: High school
This experiment shows you how to split the different colors of ink or food dyes that can be found in a smartie or m&m using the process of chromatography
Difficulty: Elementary school
This really fun experiment shows you how to make a plate of Rice Crispies stand up and jump from a plate, with the help of static electricity.
Difficulty: Elementary school
This activity shows you how to make an oil "tanker' which can be used to clean up a vegetable oil "spill".
Difficulty: Elementary school
The Phoenix metropolitan area, like many large cities, has problems with air pollution at certain times of the year. You can do a simple experiment to determine some of the factors that affect air pollution.
Difficulty: Middle school
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