Tim came into our classroom and talked about science. We even did a science experiment with
him.
To begin with we had to put our hands into some jelly stuff
on a petrie dish. Then we closed the lid
and closed them up. We put our names on the bottom so we could tell which was
which.
Some people washed their hands and repeated the experiment to
see if there was a difference. Four people also used hand sanitiser after they
washed their hands to see if it killed the bacteria.
One person didn’t wash their hand, but used sanitiser on its
own.
Tim put the petrie dishes into a black bag and put them into
his hot water cupboard at his house. A
few weeks after, he came back with the results.
They were pretty yucky. They had
mould all over the petrie dishes.
Everyone went, “Ewww”and “yuck”.
The results showed that handwashing is very important. If you
use hand sanitiser after washing your hands it kills most of the bacteria.
Using sanitiser on its own wasn’t very good.
Once he had finished he talked about England and that was
pretty interesting. He told us about what he did in England. Tim is Alex, Cormac, Lucy and Campbell’s
dad.
