• Question: what is your favourite experiment to do

    Asked by grew43bat to Jess, Jenny, Caitríona, Janis, Jason, Daoud on 9 Nov 2019. This question was also asked by buzz43can.
    • Photo: Jessica Franklin

      Jessica Franklin answered on 9 Nov 2019:

      There is one very simple experiment I love to do when I’m outdoors. To test if a rock is a limestone we drop a tiny amount of hydrochloric acid on it, if it’s starts to fizz and bubble up then it has a mineral called calcite in it but if it doesn’t react it doesn’t have calcite. It’s a really easy experiment but can tell you a lot about two rocks which might look the same.

    • Photo: Caitríona Sheridan

      Caitríona Sheridan answered on 13 Nov 2019:

      To make small circuits and see them work, even if it’s something simple like a sensor circuit to measure temperature!

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