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Tutorial - How to perform
Tutorial - How to perform
With this trick we can demonstrate how a catalyst acts as a surface for reactants to come together and form a product. Based on an old magic trick, this idea came from Paul Nugent from @SonS_Ireland. The ending is a nice surprise for students!
Effect
Effect
Two paper clips are shown. They represent two different reactant molecules. If molecules (paperclips) have the correct orientation and energy (energy greater than activation energy) to collide, they will link with other and from a chemical bond. This is shown a the performer links the paperclips.
The paperclips are unlinked and put on a folded piece piece of paper which represents a catalyst. A catalyst speeds up a reaction, provides a surface for the reactants and lowers the energy required to perform the reaction. The paper is pulled, the paperclips (which were unlinked) jump off of the paper and are now linked showing the catalyst has worked!
Method
Method
Take a piece of paper or money note (which is often smooth and easier to use) and fold into an S shape.
Place the first paperclip onto the note like shown in the picture below You want to join the front of the paper with the first ‘fold’ of the ’s’-shape.
Place the second paperclip on the note like shown in the picture below, joining the second fold of the ’s’-shape with the back of the paper.
Time for the magic moment. Holding the ends of the note or piece of paper between your forefingers and thumbs (see the picture below, pull the ends in opposite directions as to ‘unfold’ the note.
Time for the magic moment. Holding the ends of the note or piece of paper between your forefingers and thumbs (see the picture below, pull the ends in opposite directions as to ‘unfold’ the note.
This causes the paperclips to slide towards one another and then, as the paper fully opens up, the paperclips link as if by magic! A chemical reaction has occurred!
This causes the paperclips to slide towards one another and then, as the paper fully opens up, the paperclips link as if by magic! A chemical reaction has occurred!
Credit should go to Ireland’s Paul Nugent who performed this at a Science on Stage webinar in 2021.
SDG
SDG
Affordable and clean energy
Affordable and clean energy
The paperclips catalyst trick can show how less energy is needed when using catalysts and they can be reused.
Energy efficiency measures help reduce energy consumption and contribute to SDG 7's goal of ensuring sustainable energy use.
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