Questions with 1, 2, 3 or 4 marks usually start with command words. If a question starts with the command word 'state', 'give', 'name' or 'write down', it needs a short answer only. This type of question can often be answered with one word or phrase.
It is important to state, give, name or write down the number of things that the question asks for. If you write down fewer, you cannot get all the marks. If you write down more, and one is wrong, you might lose a mark.
Some questions start with the command words 'describe', 'explain' or 'compare'. These are often worth two or more marks:
More complex structured questions will be worth three or four marks. They include questions with complex descriptions and explanations, and questions in which you need to compare things.
Some of the answers are shown here as bullet points. This is to show clearly how a mark can be obtained. However, do not use bullet points in your answers - the points must be linked together logically.
This page contains AQA material which is reproduced by permission of AQA.
The image shows an atom of boron.
a) When the mass of the boron atom is calculated, the mass of the electrons is ignored. Why is the mass of electrons ignored? [1 mark]
b) How many electrons are there in a boron atom? [1 mark]
a) Because the mass of an electron is very small .
b) 5 .
The image shows a cell from a plant leaf.
Which two parts shown in the image are not found in an animal cell? [2 marks]
Cell wall .
The image shows a simple model of the three states of matter.
A student explains density to his teacher using the particle model shown in the image above.
His teacher says there are limitations to the model.
Give two limitations of the particle model shown in the image. [2 marks]
Any two from:
Some students did an investigation to study the behaviour of waves.
The image shows a ripple tank that they used to model the behaviour of waves.
a) Complete the wave fronts.
Show how the wave is refracted as it passes from the shallow region into the deep region. [1 mark]
b) Explain what happens to the waves as they pass into the deep region. [2 marks]
Lines should be further apart with the bottom of the wave fronts further to the right than the top .
b) They will speed up , so the wave fronts move further apart .