Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
1st January 2025
- 1Biodiversity, Cycles and Human Impact
A peat bog covered an area of 850 hectares in 2015. By 2025, drainage for farmland had reduced the peat bog to 680 hectares. Calculate the percentage decrease in the area of the peat bog.
- 2Chemistry Required Practicals and Data Analysis
Name one way to make a rate of reaction experiment more valid rather than simply more precise.
- 3Atomic Structure and the Periodic Table
Explain, in terms of electrons, why reactivity decreases going down Group 7.
- 4Using Resources
Name the four stages usually considered in a life cycle assessment of a product.
- 5Using the Earth's Resources and Potable Water
Explain why potable water is not required to be chemically pure.
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