Chemistry and the Titanic
Tom Kuntzleman | Wed, 01/04/2023 - 09:56
Some metals and metal alloys undergo a transition to brittleness at cold temperature. This phenomenon likely contributed to the demise of the Titanic.
Chemistry
Incorporating Molecular Number Density into Demonstrations
Dean Campbell | Tue, 01/03/2023 - 08:05
Describing the number density of molecules involved in chemistry demonstrations while presenting those demonstrations can help to convey concepts such as the small size of molecules and how the distance between molecules can vary during change of physical state.
Reactions Interactive Notebook
Nora Walsh | Mon, 01/02/2023 - 10:59
Nora Walsh outlines the interactive notebook pages she uses for her unit on REACTIONS. All of the documents and foldables are available for download.
Nobel Laureate Crossword Puzzle 1909 - 1919
Thomas Manning | Sun, 12/18/2022 - 13:14
This Nobel Laureate crossword puzzle focuses on prizes awarded between 1909 and 1919. Learn and revisit some historical chemistry, terminology and background on key historical figures in this field. This is our second in a series of Nobel Laureate crossword puzzles.
A Demo A Day II: Demonstrations and Props Used in My Environmental Chemistry Class
Dean Campbell | Sat, 12/03/2022 - 21:08
Short descriptions of demonstrations and props that Dean Campbell has used while teaching his collegiate Environmental Chemistry course. Many of these examples are also suitable for use in high school and collegiate General Chemistry courses.
Using CER to consider claims on social media
Karen Sorensen | Sun, 11/20/2022 - 14:10
Exploring science claims found on social media helps students practice applying the claim, evidence, reasoning framework.
1, 2, 3: Hybrid Dimensions
Joseph Lomax | Sat, 11/12/2022 - 22:28
Sometimes the obvious is the most difficult to see. Even after teaching for four decades, there is still something to learn from students. What did I recently learn? Check out my post.
Data-Driven Laboratory Activities: Density
Philip Root | Sat, 11/12/2022 - 20:43
Find out how laboratory activities can be used as the starting point for scientific model development rather than as the endpoint, or verification, of concepts presented in lecture. This post deals with density.
Surprising Shrinking Styrofoam Stick: Using the Gas Laws to Get a Square Peg into a Round Hole
Dean Campbell | Thu, 11/10/2022 - 16:45
Polystyrene foam sticks with a square or rectangular profile will not fit into a round target hole (e.g., the opening of a soda bottle) at room temperature. However, they do contract sufficiently in contact with liquid nitrogen to fit into the hole and produce a simple demonstration of Charles’s Law. Many other polymer foams do not shrink under these conditions, but still provide opportunities to discuss and explore their structure and chemistry.
Nobel Laureate Crossword Puzzle 1901 - 1909
Thomas Manning | Tue, 11/08/2022 - 12:58
This Nobel Laureate crossword puzzle focuses on prizes awarded between 1901 and 1909. Learn and revisit some historical chemistry, terminology and background on key historical figures in this field.