Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 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
Write the electronic structure of an atom with 12 electrons.
- 4Using Resources
State the two main steps used to produce potable water from a fresh water source.
- 5Using the Earth's Resources and Potable Water
Give one reason distillation of seawater requires a large energy input.
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