Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
5th February 2021
- 1Using the Earth's Resources and Potable Water
Name one method used to sterilise fresh water during the production of potable water.
- 2Life 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.
- 3Atomic Structure and the History of the Atom
Why is an atom electrically neutral?
- 4The Periodic Table: Groups and Trends
Why are the noble gases unreactive?
- 5Bonding, Structure and Properties of Matter
State one reason why simple covalent substances such as chlorine have low melting points.
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