Year 3 have had great fun testing different rocks with acid (vinegar) to see whether they can find limestone. The children identified the independent, dependant and control variables and described the acid’s reaction with the calcium carbonate in the limestone which created CO2 bubbles or ‘fizz’! Well done Year 3 🧫🔭🔬⚗️🧬🥼🧪🧑🔬👩🔬
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