Here’s another fun way to sharpen up your cloud recognition skills.
This cloud quiz at sporcle.com gives you three minutes to name the eight outlines.
It shouldn’t prove too testing for those who have read The Cloudspotter’s Guide from cover to cover and there are even altitude clues if you get stuck.
Unlike the NASA puzzle, the quiz doesn’t change.
But once you have sorted your cirrostratus from your cumulonimbus, you can always test your knowledge of essential facts, including Fictional Pirates, Big Mac Ingredients or – my personal favourite – George Carlin’s Seven Dirty Words.
Our thanks to Mary Daniels in Ohio, USA, for telling us about it.