Baylor College
How Can We Find Out What Is in Water?
Using paper chromatography, water watchers discover that several substances might be dissolved even though they aren't visible. In this case, you will prepare a mixture of three different food colorings for them to experiment with. A...
Royal Society of Chemistry
Separating Mixtures: How We Concentrate Natural Materials
Have your class look at a granite specimen and describe what they see. They should note three distinct components. Discuss mixtures with them and how they might be separated, then send them to the lab to figure out how to take apart five...
Curated OER
#13 Chromatography is a Gas: An Inquiry-Based Introduction to Gas Chromatography
Advanced chemistry scholars read about gas chromatography as a means of separating mixtures into their components. Then they try the technique on fingernail polish remover. Detailed instructions are provided via a lab sheet for your...
Curated OER
Chemical Ideas 7.6 - Chromatography
Thin-layer and gas-liquid chromatography are introduced in an intelligible presentation. Paper chromatography is also listed as another type of chromatography, but it is not explained. If you are particular about appearances, there are...
Curated OER
Lipstick Chromatography/Ink Chromatography
Junior crime scene investigators are instructed in two different chromatography exercises. For female suspects, they separate and compare lipstick pigments. For male suspects, they separate and compare ink samples. A data sheet is...
Curated OER
In the Mix
Students construct a water filter. In this engineering lesson, students discover how to construct a water filtration system. Students work in groups to sort tools by their properties. Students analyze and construct a water filtration...
Curated OER
Separation of a Complex Mixture
Students develop a method to separate different types of mixtures. In this chemistry lesson, students model the steps in the scientific method. They perform the experiment and analyze data.
Curated OER
The Separation Problem
For this mixture separation worksheet students problem solve a variety of ways to separate mixtures. After generating solution ideas to separating mixtures of solids prompts on the one page sheet students are prompted to respond in short...