Solutions Interactive Notebook
Nora Walsh | Tue, 04/18/2023 - 15:54
Nora Walsh outlines the interactive notebook pages she uses for her unit on Solutions. All of the documents and foldables are available for download.
colligative properties
Calculating the Concentrations of an Icy Brinicle of Death
Thomas Cox | Fri, 10/08/2021 - 14:01
A brinicle is a finger-like formation of super-cooled briny solution that grows underneath sea ice. The formation process of this ‘ice finger of death’ has only recently been captured for the first time on camera. T
A Highly-Scaffolded Activity for Helping Students Generate Exam Review Questions and See Patterns in Quantitative Problem Solving
Rachel Barnard | Wed, 07/28/2021 - 12:30
Helping students develop abstract understanding is a universal goal. This article describes an activity that involves students developing and then solving novel quantitative chemistry problems following a MadLibsTM style framework.
Icy Brinicle of Death: A COOL Example of Freezing Point Depression
Thomas Cox | Thu, 06/17/2021 - 12:50
What real world examples are made known to students when discussing freezing point depression? What about brinicles, also known as "Icy Fingers of Death"? A brinicle (from brine + ice) is a finger-like formation of supercooled brine solution that grows downward underneath sea ice. Intrigued? Cool (pun intended). Keep reading to find out more!
Developing a High School Food Chemistry Elective
Erica Posthuma | Thu, 02/16/2017 - 09:38
Food chemistry is an interesting and fun class for students. Read the article for some suggestions about resources along with an outline of a unit developed around water in cooking.
Ice Cream in a Bag
Deanna Cullen | Mon, 04/28/2014 - 13:10
Make ice cream in a baggie to emphasize energy changes, direction of energy transfer, dissolution and colligative properties.
An After-Dinner Trick
In this Activity, students investigate a classic chemistry demonstration that uses the phenomenon of freezing-point depression to lift an ice cube out of a glass of water with a thread. They first test how adding salt, pepper, cream, and sugar to cold water affects the temperature.
Meltdown Showdown! Which Deicer Works Best?
In this Activity, students test two chemical deicers, rock salt (sodium chloride) and calcium chloride, to determine which melts ice better and whether it is worth the extra cost to buy a more expensive deicer. They perform three tests comparing the two deicers, predict which will be more effective at melting through a thin disk of ice, and then test their prediction.