Daily Practice · GCSE Science

Daily Practice - GCSE Science

8th January 1999

5 questions · GCSE · 584 questions in this band

1
Chromatography and Instrumental Analysis
A sample produces only one spot when run in three different solvents. What does this suggest about the sample?
2
Chemistry of the Atmosphere
State the approximate percentage of nitrogen in today's atmosphere.
3
The Atmosphere: Evolution and Greenhouse Gases
State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
4
Climate Change and Atmospheric Pollutants
Explain how solid carbon particulates released by combustion can cause global dimming.
5
Physics Equations: Recall, Rearrangement and Application
State the equation for work done.

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