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Did you mean: chromatography
- Grade Range
- 8th - 11th
- Rating
Students initially engage in online research and consult print materials to identify a compound to produce. Once a selection has been made, individually, students conduct lab experiments to isolate substances. The end product is a research paper. Full Review »
- Grade Range
- Higher Ed
- Rating
Students determine the best solvent system for separating a methylene blue/sodium fluorescein mixture by thin layer chromatography. They conduct an initial TLC separation using ethanol and a different solvent mixture and analyze the data of all trials to determine the best solvent. Full Review »
- Grade Range
- 11th - Higher Ed
- Rating
Students explore the technique of chromatography to separate compounds in a mixture. In small groups, they separate by paper chromatography and identify the major and accessory photosynthetic pigments..................................... Full Review »
- Grade Range
- 10th - 12th
- Rating
Students are provided with a real life example of research in the areas of genetic and molecular biology. Students examine ethical considerations and related issues such as patent laws and regulatory procedures. Full Review »
- Rating
Students examine the process of melting by leaving an ice cube or popsicle out in the classroom or placing crayons in the sun. The students make observations at different stages of melting, and then draw and write about the phases they observed. Full Review »
- Grade Range
- 4th
- Rating
Students discuss what a physical change of matter is. They comprehend that it is a change in which a substance retains its own physical properties. Students discuss how a crayon can be changed by breaking it, it is still a crayon. They are taught that substances can be mixed together yet retain their pwn properties. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students investigate the components of chlorophyll. They use paper chromatography to separate the many pigments of chlorophyll from one another. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students distinguish the differences between mixtures and pure substances. They identify the ways that mixtures can be separated. Students draw what the particals look like for solids, liquids and gases. They play the card game "Mixture v. Substance. Students are asked to put their card in the correct colomn. Full Review »
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