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Science Quiz #227

Science and Nature Quiz for 22 May 2013

A new science quiz is available each week. Try our daily general knowledge quiz or work through our archive of daily and themed quizzes.

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1

Which planet comes closest to the earth in its orbit around the sun?

Note: This question was updated in April 2016
A
Saturn
B
Mercury
C
Mars
D
Venus
Select from the options above.
2

What is a koi?

A
Weapon
B
Fish
C
Belt
D
Ladle
Select from the options above.
3

What compound in the human body acts as a neurotransmitter and helps to regulate temperature?

A
Cortisone
B
Serotonin
C
Haemoglobin
D
Insulin
Select from the options above.
4

The white fumes that form when hydrogen chloride dissolves in water consist of what?

A
Methane
B
Hydrochloric acid
C
Arsenic
D
Helium
Select from the options above.
5

What are Lithium, Sodium, Potassium, Rubidium and Caesium?

A
Metalloids
B
Halogens
C
Inert gases
D
Alkali metals
Select from the options above.
6

Which planet is closest to Neptune in size and composition?

A
Uranus
B
Jupiter
C
Earth
D
Venus
Select from the options above.
7

What are Proxima Centauri, Sirius A, Pollux, Arcturus and Betelgeuse?

A
Planets
B
Stars
C
Comets
D
Black holes
Select from the options above.
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