This classroom activity challenges students to figure out the volume of gaseous carbon dioxide emitted from the combustion of 1 gallon of gasoline fuel.
Per label, 39 grams of table sugar (sucrose) are in a 12fl.oz. can of a Red Bull beverage. Visually, how much is 39 grams of anything? Check it out in this post.
Have you seen the rainbow candy experiment? It's a very simple experiment that involves pouring water into a plate that has M&M's candies or Skittles arranged in a pattern. Very curious shapes of sharply divided regions form spontaneously. How does this happen?!
Tom Kuntzleman tests to see if Powerade can be used as a source of reducing sugars in the classic silver mirror demonstration, and reminisces about Christmas days past when doing so.
Ethylene, C2H4, a volatile plant hormone stimulates fruit ripening and is also released during ripening. This post explains the role of ethylene in ripening and presents how the chemical identity of the ethylene scavenger used to suppress premature ripening during storage was determined.
What is the pressure inside a bottle of soda pop? Read this short article to find the surprising answer to this question, and also to learn how to do an experiment to answer this question for yourself!
What's a better way to start the new school year than with some new experiments? Learn how to use a variety of color changing experiments to teach students about the Diet Coke and Mentos experiment, acids, bases, chemical and physical changes, and climate change.
In "Comparing household chemicals" students discover the effects of using different types of household chemicals and determine if they are really all so different. This formative assessment targets the question “What are the effects of using and producing different matter types?” This is important because students should understand the types of products they are using. If they are buying something that says it is a cleaner for the bathroom, why does it sometimes have the same compounds in it as a cleaner for the kitchen. If students can recognize this, then they can be better consumers and not have to buy two different products knowing that the chemicals are the same.
Liquid nitrogen is used to visualize the aerosol particles emitted while speaking, coughing, breathing, and sneezing. The ability of various masks to block these droplets was also tested.
The solution to Chemical Mystery #17 is presented. Were you able to use your chemical knowledge to explain the results?