Daily Practice

GCSE Science

23rd October 1992

5 questions · GCSE · 584 questions in this band

1
Using the Earth's Resources and Potable Water
Name one method used to sterilise fresh water during the production of potable water.
2
Life 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.
3
Atomic Structure and the History of the Atom
Why is an atom electrically neutral?
4
The Periodic Table: Groups and Trends
Why are the noble gases unreactive?
5
Bonding, Structure and Properties of Matter
State one reason why simple covalent substances such as chlorine have low melting points.

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