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Saturday, April 18, 2020

LOCKDOWN SCIENCE EXPERIMENT 

My mum had hand sanitiser on her hands. When she touched the receipt from the bank machine, it left her finger prints on it. But when she touched the receipt from the supermarket, it didn't leave her finger prints 😲 We think we might know why each receipt reacted differently, but I'm curious to know what other's think. Please leave a comment and let me know 😊 


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7 comments:

  1. Mr WilliamsApril 20, 2020 at 8:34 AM

    Hi Izanna, it's Mr Williams. What a great science experiment. I like that you used to different receipts to see if there would be any difference. Hmmmmm..... My guess is that they are made from different types of paper. I'm interested to know what you might think. Why is there finger prints on one but not the other?

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    Replies
    1. IzannaApril 23, 2020 at 11:09 AM

      Hi Mr Williams, me and my mum talked about it and we think that maybe the reason might possibly be because the bank receipt has carbon in it, and the supermarket receipt does not.

      Delete
  2. PetraApril 20, 2020 at 2:41 PM

    Hi Izanna
    Well, you have got me thinking now! I think that maybe your Mum had wiped all the hand sanitizer on the bank receipt so by the time she touched the supermarket receipt there was none left on her hands. Tell me what your answer might be?

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    Replies
    1. IzannaApril 23, 2020 at 11:12 AM

      Hi Petra. Mum did reapply more hand sanitiser before touching the supermarket receipt. We think that the receipts reacted differently might be because the bank receipt has carbon in it and the supermarket receipt does not.

      Delete
    2. PetraApril 28, 2020 at 11:10 AM

      Well, you could be right. Well done on the experiment!

      Delete
  3. Mrs TabakApril 20, 2020 at 6:07 PM

    Hi Izanna, You have got me thinking too?? Maybe receipts were made out of different paper? Did you investigate more about this? If you did what were the results.

    Mrs T

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    Replies
    1. IzannaApril 23, 2020 at 11:13 AM

      Hi Mrs T. Me and my mum think that maybe the bank receipt has carbon in it and the supermarket receipt does not. That could be the reason why they reacted differently.

      Delete

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