What do rotten eggs smell of?

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Rotten eggs smell really, really bad! But what makes them smell so rotten? My daughter wanted to know because she read a story in which something was described as smelling of rotten eggs. So, she did an experiment to find out the answer:

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How do you make bubbles?


At bathtime, I heard a lot of giggling and splashing and, when I opened the bathroom door, I found my daughter in the middle of the biggest, bubbliest mountain of bubbles imagina-bubble! She said she was “doing science”, making lots and lots and lots of bubbles in the bath…

Bubbles appeal to kids of all ages and they are super easy to make – all you have to do is trap some air inside a thin film of soap.

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