What's new

The seven seas: a quick quiz

By David, 5 June 2019 Quiz

There’s a sailing theme to this fortnight’s quiz. See if you can navigate your way to a perfect score!

#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.

Was I right?

Results

Congratulations! You are a real science whiz!

Oh dear! Better brush up before the next quiz!

If you’re after more fun science for kids, subscribe to Double Helix magazine!

 

Black lightning bolt in purple circle

0 comments

Leave a Reply

By posting a comment you are agreeing to the Double Helix commenting guidelines.

This site uses Akismet to reduce spam. Learn how your comment data is processed.