Daily Practice

GCSE Science

2nd June 1991

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
A sample contains 90% of an isotope with mass number 10 and 10% of an isotope with mass number 11. Calculate the relative atomic mass, to 1 decimal place.
3
Using Resources
Explain why potable water is not the same as pure water.
4
Using the Earth's Resources and Potable Water
State what is meant by sustainable development.
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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