There’s a sailing theme to this fortnight’s quiz. See if you can navigate your way to a perfect score!
Results
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#1. Typically, how much salt is there in one litre of sea water?
Sea water is about 3.5% salt, and a litre of sea water is a little more than a kilogram, so there’s about 35 grams of salt in a litre of sea water.
#2. There is one operational spacecraft orbiting Venus – what is its name?
Akatsuki has been orbiting Venus since 2015, studying the weather and climate.
#3. What colour is the copper ore called malachite?
Malachite is a beautiful green mineral that is sometimes used for jewellery.
#4. What is the longest ocean animal ever measured?
Bootlace worms are only about one centimetre wide, but they can grow very long. A 55-metre-long bootlace worm washed up on the coast of Scotland in 1864.
#5. Who was the first woman in space?
Valentina Tereshkova was the first woman and 12th person to go to space, in June 1963.
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