Daily Practice · GCSE Science

Daily Practice - GCSE Science

26th March 1999

5 questions · GCSE · 584 questions in this band

1
Using Resources
Explain why potable water is not the same as pure water.
2
Using the Earth's Resources and Potable Water
State what is meant by sustainable development.
3
Life Cycle Assessment, Recycling and Corrosion
Explain why steel (an alloy of iron and carbon) is generally harder than pure iron.
4
Atomic Structure and the History of the Atom
Define an isotope.
5
The Periodic Table: Groups and Trends
Explain why potassium is more reactive than sodium.

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