Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
- 1Using Resources
State one benefit of recycling metal rather than extracting new metal from its ore.
- 2Using the Earth's Resources and Potable Water
Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
- 3Life Cycle Assessment, Recycling and Corrosion
Explain, using the reactivity series, why attaching blocks of zinc to the hull of a steel ship helps prevent the steel from rusting.
- 4Atomic Structure and the History of the Atom
Why is an atom electrically neutral?
- 5The Periodic Table: Groups and Trends
Why are the noble gases unreactive?
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