Using Ion Exchange Chromatography to Separate Proteins
Pupils explore protein purification by separating a positively charged molecule, lysozyme, from a negatively charged molecule, albumin, at neutral pH using ion exchange chromatography.
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Mixtures and Solutions: Paper Chromatography Experiment
Why does some ink bleed through paper, and other ink doesn't? Practice some paper chromatography to separate the colors from a pen with an interactive experiment for middle and high schoolers. Learners use a variety of solutions to track...
7th - 12th Science CCSS: Designed
New Review Separating Mixtures: How We Concentrate Natural Materials
How do miners isolate the substance they're looking for from a big pile of rock? Through an insightful lab, science scholars learn how to use their observation skills to identify physical properties that scientists use to separate...
6th - 9th Science CCSS: Adaptable
Monoatomic and Polyatomic Ions
Investigate the ions of the atomic world. By referencing the periodic table, the video instructor describes the different charges of monoatomic ions and references both their stock and classical names. She then defines polyatomic ions...
3 mins 9th - 12th Science CCSS: Adaptable
How to Make a Seashell - Just Add Water!
Shell-building animals are resourceful creatures! An interesting video lesson describes how they use calcium and carbonate ions in the ocean to form their shells. The process is dependent on the equilibrium of calcium and carbonate ion...
3 mins 6th - 12th Science CCSS: Adaptable
How to Unboil an Egg
If you believe hard boiling an egg to be an irreversible process, then think again! Take a few minutes to watch this fun video as it explores the process for unboiling an egg and learn about the applications this process may have in the...
4 mins 6th - 12th Science CCSS: Adaptable