Evaluations are part of everyday life. This multi-part blog has aimed to expand the collective understanding on what is evaluation and what are some ways that it is done.
The demonstration where CO2 is generated and used to snuff out a candle in an aquarium or other container is well known. This article describes a dramatic variation on these demonstrations that allows for discussion of such topics as the ideal gas law, densities of different gases, gas density changes with temperature, miscibility, and viscosity. The device described is easily and inexpensively produced and stored. The demonstration is large scale and works well for classrooms and community outreach events.
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.
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.
Learn how to form a blue-green copper compound on a penny, and then use that compound to make green flames. This is a great summer time activity for your next campfire!
The solution to Chemical Mystery #17 is presented. Were you able to use your chemical knowledge to explain the results?
If you know your chemistry, you can figure out how the bubbles get busted!
In honor of the International Year of the Periodic Table: A familiarity with the chemistry of some of the elements more commonly encountered in everyday life is a valuable learning experience for all students. Iron is the last element in this series of elements to be discussed as part of the Element of the Month program. #IYPT