Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
20th July 2017
- 1Atomic 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.
- 2Using Resources
Explain why potable water is not the same as pure water.
- 3Using the Earth's Resources and Potable Water
State what is meant by sustainable development.
- 4Life Cycle Assessment, Recycling and Corrosion
Explain how painting an iron gate helps prevent it from rusting.
- 5Atomic Structure and the History of the Atom
State the relative mass and relative charge of a neutron.
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