Wednesday, 28 September 2022

Chromatography


 We took some ground up plant leaves and ran them in a chromatogram using 3 parts hexane, 1 part chloroform and 1 part Acetone. The students had not met using solvents other than water and were surprised at the results.

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Doppler Rocket

Demonstrating the Doppler effect with the @pascoscientific Doppler Rocket: As the rocket moves away, students can hear the pitch drop (red s...