Glossary

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substitution reactions

Subject: 

  • Physical Sciences

reactions in which an atom or group of atoms is replaced in a molecule by another atom or group of atoms.

Related Content

ion exchangers
Subject:
Physical Sciences

substances that are able to swap ions.

initiation
Subject:
Physical Sciences

the initial step needed to start polymerisation.

Ostwald process
Subject:
Physical Sciences

the production of nitric acid.

tetrahedral shape
Subject:
Physical Sciences

ratio of atoms is 1 : 4 with a bond angle of 109,50 example CH4

oxidation-reduction
Subject:
Physical Sciences

reactions in which oxidation and reduction take place (redox reaction).

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Many subjects require students to know work from the previous grades. Make sure your students are able to access the textbooks from previous years or a good reference book that contains the...

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Once your students have completed practice exam papers, encourage them to go over the areas where they struggle and offer them some additional support. Suggest a study guide or additional material...

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

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Remind your students that studying should be active. They should be making notes, working through examples, doing practice exam papers and testing themselves on the sections they are studying.

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Formulae sheets or key concept sheets are useful for quick revision. Make some sheets your students can stick on a wall or at the back of their books. The more they look at the formulae and key...

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Different study methods work for different students. Encourage your learners to find out what works for them so you can support them.

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Many subjects require students to know work from the previous grades. Make sure your child has access to a good reference book that contains the concepts they need to refer back to.

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Be calm and supportive on the morning of the test or exam. Leave any difficult conversations for another time.

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Make sure your teenager has enough time to relax, do sport, play music and spend time with friends. A balanced lifestyle often leads to better results.

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Sit with your child and help him/her with their studies whenever you get time. Ask him to explain the work to you.

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Try to be supportive even when you are disappointed in your child’s marks. Help your child by asking her teacher for advice, getting additional study material or outside tutoring. This will build...

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Speak openly to your child so that he feels that he can share problems or concerns with you.

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Encourage your child not to cram at the last minute. The work that is learned while your child is panicking is unlikely to be...

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The night before the exam, encourage your child to relax. Allow him to do something fun and make sure he gets to bed early.

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On the afternoon before the exam, get your child to review her notes and summaries, especially for sections of work where she is less confident.

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On the morning of the exam, get your child to go over his formulae sheets to remind him of key information.

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Once your teenager has completed practise exam papers, go over the areas where they struggle. Get a study guide to help you and your student if you need help with a particular section.

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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.

[ more ]

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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When you are writing an exam, first write down all the formulae or important facts you are worried about forgetting.

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Make a list of the stationery and instruments you need for your exam and pack it the night before.

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Go to bed early the night before tests and exams so that you can wake up in time to quickly read through the sections you are worried about.

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Stay positive and confident! Believe that you can ace the test or the exam.

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Always test yourself on what you have studied - or ask someone else to test you.

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Make sure you know and can explain all formulas and theorems in your exams. These are easy marks.

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Look up definitions for words you don’t understand.

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Study for 30 to 45 minutes at a time and then take a break – otherwise you won’t concentrate as well.

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Do extra questions and worksheets on sections you find difficult.

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