Resources by whynotchemeng
Displaying 11 - 15 of 15
The Coke Fountain
In this demonstration from whynotchemeng, Diet Coke and Mentos mints are used to create coke fountains. The small pits on the surface of the Mentos create many nucleation sites for bubbles to form. This experiment is very messy and so it is best to perform it outside the classroom. A rolled up piece of paper can...
Vacuum Bazooka
This video from whynotchemeng shows the use of a vacuum cleaner to create a bazooka that fires film canisters. The pressure difference in the tube caused by the vacuum cleaner, makes the air outside push the canister at high speed through the tube.
Whoosh bottle
This demonstration from whynotchemeng involves lighting a splint to ignite Propon-2-ol in a 25 litre drinks dispenser bottle. Lighting the vapour makes an impressive whoosh sound and flames shoot out of the bottle. The bottle could be placed on scales or a force sensor to measure the thrust from the ignition....
whynotchemeng was set up by the Institute of Chemical Engineers (iChemE) to encourage students to consider careers in chemical, biochemical or process engineering. The resources are designed to give information for students, teachers, careers specialists and parents. The Top 10 Flash Bang videos have been produced...
These ten videos from the Institution of Chemical Engineers, have been produced to provide fun and exciting demonstrations that are relevant to the Key Stage Four curriculum. The videos show the demonstration performed in front of a class, and show the reaction of the students to the demo.