Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 1Ecology
Name the equipment used to measure the abundance of a small plant species within a sample area.
- 2Ecosystems, Adaptation and Feeding Relationships
In a grassland food chain, the biomass of grass available is 8400 kg and the biomass transferred to the rabbits that eat it is 940 kg. Calculate the percentage efficiency of biomass transfer from grass to rabbits, to 3 significant figures.
- 3Biodiversity, Cycles and Human Impact
Explain why large-scale deforestation increases the concentration of carbon dioxide in the atmosphere.
- 4Chemistry Required Practicals and Data Analysis
In the rate experiment where a cross disappears, why is the result subjective?
- 5Atomic Structure and the Periodic Table
State the relative charge of a neutron.
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