Chromatography

Through the analysis of paper chromatography to separate ink from the pen found at the crime scene, learners analyze the different stains and through calculations determine the thief. 

Here is a copy of a past national challenge exam that you can use in your general chemistry course as a unit or semester review. Sixty multiple-choice questions query learners on properties of matter, stoichiometry, reactions, and...

Introduce organic chemistry through an analysis of flavor. A three-part unit begins with an overview of the components of flavor. Next, scholars prepare esters through esterification. Finally, they examine how all senses have an impact...

Test differences in writing instruments with this hands-on activity to demonstrate paper chromatography in action. The class performs an experiment on multiple writing instruments and determines the area of separation to discover an...

Pigmentation of leaves is important in plant processes. Scholars use chromatography to create a better picture of the pigmentation in an assortment of leaves. They share their results to make comparisons between different plant species.

Do you think chromatography paper suffers from separation anxiety? Young chemists make soap, slime, silly putty, and experiment with chromatography in this lesson. The material includes clear instructions for each experiment along with...

This is one way to get a reaction from your classes! The lesson presents the different reaction types with an explanation, chemical equation model, and examples. The slides include decomposition, single replacement, double replacement,...

Everything around you is related to chemistry and more specifically, the energy within a system. The video explores how energy, in its different forms, changes after conversion — given off as heat or absorbed as heat  in chemical...

Immerse your chemistry class in the world of organic chemistry! Science scholars isolate acetaminophen from an over-the-counter sample during an intense and interesting lab. Groups use many different separation and analysis techniques to...

Use class time to perfect your hollandaise sauce with a chemistry lesson. It includes two activities to teach about immiscible liquids, emulsifiers, and creating a stable homogenous mixture. Young scientists first mix liquids in a...