Daily Practice

GCSE Science

14th April 1991

5 questions · GCSE · 584 questions in this band

1
Atomic Structure and the Periodic Table
State the relative charge of a neutron.
2
Using Resources
State one benefit of recycling metal rather than extracting new metal from its ore.
3
Using the Earth's Resources and Potable Water
Explain, in terms of particle size, how reverse osmosis separates water from dissolved salt.
4
Life Cycle Assessment, Recycling and Corrosion
Give one reason a manufacturer's own life cycle assessment of its product might not be fully objective.
5
Atomic Structure and the History of the Atom
What did the alpha scattering experiment show that the plum pudding model could not explain?

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