Glendermott Primary School, Derry

Dental Hygiene

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14th Oct 2016

Ready to start our experiment!

Ready to start our experiment!

To make it a fair test we poured the liquids in at the same time!

To make it a fair test we poured the liquids in at the same time!

We left them for 10 minutes.

We left them for 10 minutes.

The vinegar began to peel the shell!

The vinegar began to peel the shell!

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