Matter & Change

The WEIRDEST Chemical Reaction I've Ever Seen!

Tom Kuntzleman | Sat, 09/07/2024 - 11:17

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This chemical reaction is just plain weird...but also beautiful!

A Culturally Relevant Collab with NGSS and Chemistry

Nina Hike | Fri, 12/01/2023 - 10:09

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Nina Hike shares a storyline and lesson that seamlessly integrates NGSS with a culturally relevant storyline, making learning chemistry both engaging and impactful.

Unit Cells and Layer Sequences using Dimpled Packaging

Dean Campbell | Sun, 10/01/2023 - 09:07

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Regularly dimpled trays such as those used in food packaging can be used to represent layers of atoms in solid structures. For example, the square array of dimples in transparent plastic mini quiche trays can be used to depict layers within cubic or tetragonal unit cells. Multiple solid structures and ways to represent those structures are described.

Refresh and Reinforce: Water Maze Challenge Brain Break Activity

Melissa Hemling | Mon, 09/18/2023 - 08:42

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Brain Breaks are powerful tools in education, supported by research showing improved focus, retention, community building, and reduced stress among students. When structured using chemistry principles, like in the Water Maze Race, brain breaks can also introduce or reinforce fundamental chemistry concepts.

Chemistry and the Titanic

Tom Kuntzleman | Wed, 01/04/2023 - 09:56

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Some metals and metal alloys undergo a transition to brittleness at cold temperature. This phenomenon likely contributed to the demise of the Titanic.

Incorporating Molecular Number Density into Demonstrations

Dean Campbell | Tue, 01/03/2023 - 08:05

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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.