Daily Practice

GCSE Science

17th February 1985

5 questions · GCSE · 584 questions in this band

1
Chemistry Required Practicals and Data Analysis
A gas syringe collects 48 cubic centimetres of gas in 40 seconds. Calculate the mean rate.
2
Atomic Structure and the Periodic Table
Explain, in terms of electrons, why reactivity decreases going down Group 7.
3
Using Resources
Name the four stages usually considered in a life cycle assessment of a product.
4
Using the Earth's Resources and Potable Water
Explain why potable water is not required to be chemically pure.
5
Life Cycle Assessment, Recycling and Corrosion
State one environmental benefit of recycling aluminium cans rather than making new aluminium from ore.

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