Holy Spirit GNS, Ballymun, Dublin
St Patrick's Day Closure School will be closed 16th & 17th March. School will reopen Wednesday 18th March at 08:55.
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3rd Class Science Week

18th Nov 2025

The 3rd class scientists explored how different liquids can affect an eggshell, just like drinks can affect our teeth. First, they planned their experiment and made predictions, then patiently waited all week to see what would happen.

The results were eye-opening! The eggs sitting in water and milk stayed the same, but the eggs in acidic drinks (like juice and coca cola) changed a lot. Some turned different colours, while others became soft and brittle. This really shocked the students as it made them think about how different liquid might affect their teeth. They really enjoyed the activity, especially bouncing and popping the squishy egg.