Mystery #4Tier 2-3microbes / microscopes / light
How does a microscope let us see a world too small for our eyes?
For thousands of years, nobody knew that germs existed. Then someone looked through a curved piece of glass and gasped: a drop of plain pond water was alive with wriggling creatures. Nothing about the water itself had changed. So what did that little piece of glass actually do?
Your guess
What do you reckon a microscope actually does to let you see the invisible?
There's no single magic word to type, have a go in your own words, then reveal the answer to see how close you got.
Make a guess to unlock the hints and the answer.