The WEIRDEST Chemical Reaction I've Ever Seen!
Tom Kuntzleman | Sat, 09/07/2024 - 11:17
This chemical reaction is just plain weird...but also beautiful!
two-year college
Fluorescence Rocks! Exploring Glowing Sodalite
Dean Campbell | Wed, 08/21/2024 - 12:41
Syenite rocks containing sodalite that fluoresce yellow have been found on Lake Superior beaches in recent years and are of interest to collectors. The fluorescence of this mineral, which can be found in other localities, can be shown in classrooms and studied spectroscopically. Its structure can also be modeled with LEGO bricks, enabling further classroom connections.
Using Information from the 2024 AP Chemistry Reading to Improve Exam Performance
Michael Farabaugh | Sun, 08/11/2024 - 10:19
Michael Farabaugh outlines mistakes and misconceptions that were encountered during the 2024 AP Reading and offers suggestions for improving performance on the AP Chemistry exam.
APTeach - Using Data to Address Unit 1 Misconceptions
Deanna Cullen | Thu, 08/01/2024 - 10:30
Join APTeach to discuss strategies for teaching Unit 1 concepts based on AP Chemistry’s CED. In this session, teachers will share how they uncover and address student misconceptions to improve student scores and deepen student understanding of essential chemistry concepts. REGISTER NOW for the August 22nd APTeach Session!
Mechanochemistry with Phenolphthalein and Base
Dean Campbell | Wed, 07/24/2024 - 17:11
Grinding solid colorless phenolphthalein indicator and solid colorless magnesium hydroxide base can produce a reaction that causes the mixture to turn pink.
The Chemistry of Water Reveal Coloring Books
Tom Kuntzleman | Tue, 07/16/2024 - 07:01
How do Melissa & Doug’s “Water WOW!” Water Reveal coloring books work? Let's do some experiments to find out!
Manufacture and Use of an Effervescent Antacid
David Cash | Sun, 06/30/2024 - 10:13
A question set about an effervescent antacid formulation unpacks what is occurring both qualitatively and quantitatively. The student will review and apply formulas, balanced equations, percentage elemental compositions, mass-mass calculations, mole-mole calculations, theoretical yield, and limiting reagent.
Using LEGO bricks and paper springs to illustrate helical chemical structures
Dean Campbell | Sat, 06/29/2024 - 13:56
Helical structures can be built from media such as LEGO bricks and paper. These structures can be used to model helical structures in chemistry. These include circularly polarized light and various helical biomolecules.
Amount and rate of heat transfer using iron spheres and liquid nitrogen
Dean Campbell | Tue, 06/04/2024 - 11:00
When iron spheres at room temperature are added to liquid nitrogen, the nitrogen boils as heat is transferred in from the iron. The amount of liquid nitrogen boiled depends on the amount of heat transferred, which depends on the mass of the iron added. However, the rate at which liquid nitrogen boils depends on the surface area of the iron in contact with the liquid nitrogen. These phenomena can be studied with experiments which measure the mass lost by the boiling liquid nitrogen.
APTeach Partners with ChemEd X
Krystle Moos | Fri, 05/31/2024 - 08:12
APTeach announces partnership with ChemEd X!