Science and Nature Quiz for 19 August 2009
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
What is the name for the displacement at, or height of, each crest of a sound wave?
Select from the options above.
2
What name is given to the unit of electrical power represented by a current of 1 ampere flowing through a circuit whose potential difference is 1 volt?
Select from the options above.
3
What is the most common colour of a topaz?
Select from the options above.
4
Which tree native to Mexico, South America and Central America, part of a family of flowering plants, produces a fruit (technically a large berry) that contains a pit which may be egg-shaped or spherical?
B
Chinese Gooseberry (or Kiwi)
Select from the options above.
5
What is the study of fishes?
Select from the options above.
6
What are rotating stars that emit a beam of electromagnetic radiation that can only be observed when the beam of emission is pointing towards the Earth, which is called "the lighthouse effect"?
Select from the options above.
7
What is added to water to make brine?
Select from the options above.
