Particles - Practical questions
You will complete eight Practical Activity Groups (PAGs) if you are studying GCSE Chemistry. If you are studying GCSE Combined Science you will complete 16, of which five are in Chemistry.
You could be asked questions about the apparatus, methods, safety precautions, results, analysis and evaluation of these experiments.
There are no PAGs in the Particles section.
These questions have been written by a Bitesize consultant as a suggestion to the type of questions that may appear in an exam paper.
Learn about practicals with Dr Alex Lathbridge
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Dr Alex Lathbridge answers questions about practicals.
Sample question 1 - Foundation
Question
Name one piece of apparatus suitable for measuring different volumes of liquids.
[1 mark]
Measuring cylinder/burette/graduated pipette [1]
Sample question 2 - Foundation
Question
Give two reasons why hazard symbols are used on containers in the laboratory.
[1 mark]
The following are vaild points that could be included in your answer. It is important that you do not bullet point your answer but write your sentences in full:
- to indicate the dangers associated with the contents [1]
- to inform people about safe-working precautions with these substances in the laboratory [1]
Sample question 3 - Higher
Question
Describe the difference between a hazard and a risk.
[1 mark]
The following are vaild points that could be included in your answer. It is important that you do not bullet point your answer but write your sentences in full:
- a hazard is something that could cause damage or harm to someone or something [1]
- a risk is the chance that a hazard will cause damage or harm [1]
Sample question 4 - Higher
Question
A student carries out an experiment to determine the empirical formula of magnesium oxide. The student heats magnesium in a crucible strongly for five minutes.
Explain a safety precaution the student should take to reduce the risk of harm in this experiment.
[2 marks]
The following are vaild points that could be included in your answer. It is important that you do not bullet point your answer but write your sentences in full:
- allow the crucible to cool before moving it using tongs [1]
- the crucible will become very hot during heating and could cause burns [1]