Daily Practice

GCSE Science

16th October 1990

5 questions · GCSE · 584 questions in this band

1
Using the Earth's Resources and Potable Water
Explain why potable water is not required to be chemically pure.
2
Life Cycle Assessment, Recycling and Corrosion
State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.
3
Atomic Structure and the History of the Atom
Why do isotopes of an element react in the same way?
4
The Periodic Table: Groups and Trends
State the trend in reactivity down group 7 and name the most reactive halogen listed on the periodic table.
5
Bonding, Structure and Properties of Matter
A student says that metals conduct electricity because they contain free-moving ions. Explain why this statement is incorrect, and give the correct explanation.

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