There’s a sailing theme to this fortnight’s quiz. See if you can navigate your way to a perfect score!
Congratulations! You are a real science whiz!
Oh dear! Better brush up before the next quiz!
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.
Akatsuki has been orbiting Venus since 2015, studying the weather and climate.
Malachite is a beautiful green mineral that is sometimes used for jewellery.
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.
Valentina Tereshkova was the first woman and 12th person to go to space, in June 1963.
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