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by Dean Campbell
Wed, 03/27/2024 - 20:42

Polylactic acid (PLA) exhibits a glass transition from hard and brittle to soft and rubbery when immersed in boiling water. PLA-based structures containing a small metal object can be used as rattles when they are shaken. The sound of the rattles change when they are heated above or cooled below their glass transition, enabling them to be used as demonstrations.

Recent activity: 3 months 4 weeks ago
by Nora Walsh
Tue, 03/05/2024 - 09:08

This quick / low-prep stoichiometry lab helps students visualize why they must convert mass into moles before performing stoichiometry calculations. 

Recent activity: 4 months 3 weeks ago
by Tom Kuntzleman
Wed, 02/28/2024 - 13:59

Pharaoh's serpent is the name of a very interesting chemical reaction that produces a snake-like foam. Unfortunately, it requires the use of a toxic mercury compound. Explore this very similar reaction that can be achieved quite simply by using fuel tablets and calcium gluconate tablets and learn a lot about the chemistry that is involved!

Comments: 3
Recent activity: 3 months 1 week ago
by Ashley Green
Tue, 02/20/2024 - 10:30

Ashley Green shares how she recently changed up her nomenclature unit by asking her students to look for patterns in names and formulas.

Recent activity: 5 months 5 days ago
by Kristen Drury
Thu, 02/15/2024 - 07:27

Students may have been using the metric system as early as in elementary school, so why do they struggle to use it in first year chemistry class in high school? This is a quick idea to help you reintroduce the metric system in your class.

Recent activity: 5 months 1 week ago
by Dean Campbell
Fri, 02/02/2024 - 15:14

Dean Campbell uses demonstrations and props to illustrate concepts while teaching his collegiate Materials Chemistry course. Many of the examples described are also suitable for use in high school and collegiate General Chemistry courses. 

Recent activity: 5 months 2 weeks ago
by Hannah Sevian
Wed, 01/31/2024 - 10:44

The objective of the multi-country IUPAC Chemistry Teacher Survey is to improve understanding of the use of practical work in high school chemistry classes related to concepts of sustainability. 

Recent activity: 5 months 3 weeks ago
by Dean Campbell
Fri, 01/26/2024 - 11:09

Have a 3D printer? Make some 3D printed models of various carbon allotropes!

Recent activity: 6 months 7 hours ago
by Tom Kuntzleman
Tue, 01/16/2024 - 15:12

What is some of the chemistry involved in the formation of ice clouds when boiling water is thrown into icy air?

Recent activity: 6 months 1 week ago
by Hannah Korslund
Mon, 01/15/2024 - 12:43

The author shares how using interactive notebooks has supported her chemistry students.

Recent activity: 1 week 10 hours ago