Daily Practice
GCSE Science
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27th August 1990
- 1Biodiversity, Cycles and Human Impact
State what is meant by the term biodiversity.
- 2Chemistry Required Practicals and Data Analysis
What does 'concordant' mean when applied to titres?
- 3Atomic Structure and the Periodic Table
An atom has atomic number 11 and mass number 23. State the number of protons.
- 4Using Resources
Define a finite resource, giving one example.
- 5Using the Earth's Resources and Potable Water
Name one method used to sterilise fresh water during the production of potable water.
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