Glossary

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linear shape

Subject: 

  • Physical Sciences

atoms in ratio 2:1 with bond angle of 1800 for example HCl.

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allotropy
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(also called allotropism) the property of some chemical elements to exist in two or more...

trigonal planar shape
Subject:
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molecule where the ratio of atoms is 1 : 3. So the bond angle is 1200, for example BF3

endothermic reaction
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a reaction in which heat is absorbed from the surroundings and the temperature of the reaction...

delocalised electrons
Subject:
Physical Sciences

electrons that have become removed from the atom and form a ‘sea’ or region to which the...

electron affinity
Subject:
Physical Sciences

the energy liberated when an electron is added to an isolated, neutral atom in the gaseous state...

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Exam practice is essential. Make sure your student has access to practice exam papers for the subjects they take. Make sure the exam papers relate to the correct version of the curriculum.

[ more ]

Studying should be active. Your child should be making notes, working through examples, doing practice exam papers and testing herself on the sections she is studying.

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Formulae sheets or key concept sheets are useful for quick revision. Get your teenager to stick them on the wall in their room. The more they look at the formulae and key concepts, the more likely...

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Different study methods work for different students. Find out what works for your child so you understand how you can support him or her.

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