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.
1
Which planet comes closest to the earth in its orbit around the sun?
Note: This question was updated in April 2016
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2
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3
What compound in the human body acts as a neurotransmitter and helps to regulate temperature?
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4
The white fumes that form when hydrogen chloride dissolves in water consist of what?
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5
What are Lithium, Sodium, Potassium, Rubidium and Caesium?
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6
Which planet is closest to Neptune in size and composition?
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7
What are Proxima Centauri, Sirius A, Pollux, Arcturus and Betelgeuse?
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