Here comes the science!

Today we investigated the process of dissolving. We required a plastic cup, a few M&M’s, 100 ml of water and a little bit of patience. Primary 4 set up their experiments and watched in amazement as the sugar coating on the M&M’s dissolved, leaving a beautiful rainbow coloured puddle at the bottom of the cup. However no-one was prepared for what happened next … the letter ‘m’ from each sweet floated to the top of the cup. We then had a scientific discussion about why this would happen. What do you think ?

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