What is radioactive decay?
Everything that you need to know about radioactive decay for your GCSE Science exam.
Are you starting to revise for your mocks?
We have compiled a comprehensive list of command words to help you answer exam style questions even better.
Calculate: Work out your answer using the numbers in the question. Read the question carefully for information on equations, units and/or significant figure.
Comment on: Look at data or information and decide what it shows.
Compare: Give similarities and/or differences between two (or more) things. Your answer must relate to both (or all) things mentioned in the question.
Compare and contrast: Give similarities and differences between two (or more) things. Your answer must relate to both (or all) things mentioned in the question.
Complete: Add words to a statement or values to a table or diagram.
Deduce: Come to a decision based on the information in the question.
Define: Give the meaning of the term(s) in the question.
Describe: State facts, information, events or processes and link them in a logical order.
Determine: Give a numerical answer from the information in the question.
Devise: Write down a method or plan.
Estimate: Find a rough number or amount from the information given in the question.
Evaluate: Make a judgement, considering arguments and/or evidence for and against.
Explain: Say how or why something happens; 'because' will be an important part of your answer.
Give: Provide the requested information from memory. You don't need to explain your answer.
Identify: Name or otherwise characterise.
Justify: Support with evidence.
Label: Provide appropriate names on a diagram/graph/table.
Name: Provide the requested information from memory. You don't need to explain your answer.
Plan: Write down a method using the details provided in the question.
Predict: Say what you think will happen based on what you know.
Reason: Say why something happens or is the case.
State: Provide the requested information from memory. You don't need to explain your answer.
State and explain: Make a point and link ideas to justify that point.
Suggest: Provide the requested information by applying your knowledge and understanding to the question.
On sAInaptic, we help students by reminding them of what the command word means using a nifty little 'info' button as they practice.
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Everything that you need to know about radioactive decay for your GCSE Science exam.
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Reflection and refraction are important properties of waves, such as light, that helps us to see objects. This blog post explains the key concepts and highlights the differences between reflection and refraction.