Thursday, 19 September 2013

Petri dishes

We are learning to write instructions. We are also learning about germs - we have been doing experiments on them. Have a look at the slideshow below... and prepare to be amazed!
Room 24 tested areas around the classroom for germs.

dirty hands
clean hands
cotton buds
petri dish
sticky tape

1. Dip dirty fingers in a petri dish.
2. Dip washed fingers in a petri dish.
3. Test other classroom areas with a cotton bud.
4. Seal the petri dishes with sticky tape.
5. Put the petri dishes in a warm place.
6. Watch bacteria grow...

 Thank you Chris, Edward's mother, for giving us all the petri dishes. 

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