Macks Science Lab Day 27 Egg Chalk mackhollins scienceexperiments buffalobills football

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November Challenge: • Science Experiments 🧪 • Day 27 - Egg Chalk • • Calcium carbonate (CaCO3) is the chemical that lets us draw on the pavement. Eggshells contain calcium carbonate which is why you can turn them into chalk. Grinding the egg shells into powder allows them to mix with a binder (flour/water) to create a workable consistency. • #mackhollins #scienceexperiments #buffalobills #football

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