Make a Prototype After students decide that citric acid is the better acid to use, they will combine water, citric acid, and baking soda in a small, zip-closing plastic snack bag to produce and trap ...

You may smell the chemicals but DO NOT taste them. Add 1/4 teaspoon of citric acid to a 1-quart plastic bag. Add 1/4 teaspoon of baking soda to the bag. Place the open container of water inside ...

Mix in citric acid and lemon zest. Use a piping bag fitted with a piping tip to frost the cupcakes. Sprinkle with additional ...