The Density Bottle is Red, the Density Bottle is Blue...
Tom Kuntzleman | Fri, 05/30/2025 - 10:10
You're going to love this new color variation on the Density Bottle experiment!
Solutions
Solubility Showdown: A Brain Break for Chemistry Classrooms
Melissa Hemling | Fri, 07/26/2024 - 22:46
Discover how "Solubility Showdown," a lively brain break game, transforms learning solubility rules into a memorable experience filled with student banter and excitement.
Exploring Color Separation in Salting-Out Experiments
Tom Kuntzleman | Sat, 05/04/2024 - 07:44
Adding dyes to salting out experiments can create a variety of interesting color effects as the dyes differentially dissolve in the aqueous and organic layers. Can this differential solubility of dyes be explained using intermolecular forces as a guide?
Colour Changes with Caffeine - Part 2
Iain Smellie | Mon, 03/11/2024 - 14:12
This study outlines the effect on the colour of anthocyanin-containing solutions when mixed with caffeine. Given the diversity of anthocyanin structures available from other vegetables, fruits or flowers, there is great potential for series of open-ended experiments for students in classes or science clubs to investigate.
Colour Changes with Caffeine
Iain Smellie | Thu, 12/14/2023 - 13:46
This initial study outlines the effect on the colour of anthocyanin-containing solutions when mixed with caffeine. Given the diversity of anthocyanin structures available from other vegetables, fruits or flowers, there is great potential for series of open-ended experiments for students in classes or science clubs to investigate.
Simulating Ice Core Analysis to Identify Volcanic Eruptions in the Past
Ben Meacham | Fri, 08/25/2023 - 07:49
This simulated ice core lab provides a great opportunity for students to use different units of concentration beyond molarity, explore how knowledge of chemistry can uncover past events on Earth and practice the skill of generating a calibration curve.
The Salting-Out Effect: A Colorful Demonstration That Leads to Student - Teacher Activities
Jim Webb | Wed, 04/26/2023 - 20:53
Have you seen the "salting-out effect"? This interesting demonstration shows a separation of two layers in a solution of water and an organic solvent by adding an ionic salt. Although this concept has important applications in organic chemistry and biochemistry, it can also be visually stunning and engaging for audiences. Read on to learn how to incorporate this demonstration into your chemistry lessons.
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.
Solutions with Kristen Vanderveen
Deanna Cullen | Wed, 02/16/2022 - 18:00
Solutions are all around us in life and chemistry class! On February 10th, 2022, Kristen Vanderveen discussed solubility curves, molarity calculations, using particulate level modeling and simulations, making real world connections and so much more in this ChemBasics Talk. View a recording of her presentation and access materials she has suggested here.
Solubility, Stoichiometry and Non-stoichiometry
Joseph Lomax | Mon, 01/24/2022 - 19:40
The unspoken word of chemistry: Non-stoichiometric. Stoichiometry and non-stoichiometry are concepts that combine to make a solution that does not have to be difficult to understand.