Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
19th April 2024
- 1Tests for Ions, Gases and Flame Tests
A solution forms a green precipitate with sodium hydroxide solution. Which ion is present?
- 2Chromatography and Instrumental Analysis
State two advantages of instrumental methods of analysis, such as GC-MS, compared with manual chemical tests.
- 3Chemistry of the Atmosphere
Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.
- 4The Atmosphere: Evolution and Greenhouse Gases
Explain, in one sentence, why the oceans were able to form only after the early Earth had cooled.
- 5Climate Change and Atmospheric Pollutants
Give one piece of evidence used to link human activity to recent climate change.
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