Document containing level descriptors as powerpoint for download File:How science works.pptEdit

Level 3 Level 4 Level 5 Level 6 Level 7 GCSE


You plan an experiment that is safe and tells us something useful You plan a fair test and describe the main risks You make a prediction and identify the variables that might affect your results You plan to test a hypothesis and identify the dependent, independent and control variables. You plan a fair test of your hypothesis discussing which variables can and cannot be controlled. Your risk assessment is informed by secondary sources

Collecting DataEdit

Follow your teachers instructions to make simple measurements and record them scientifically Choose the equipment that will allow you to carry out a fair test. Check your results. Explain how your choice of equipment and method allows you to collect valid data. Spot anomalies Choose equipment with a suitable resolution and explain your choice of range and interval and how you avoided errors. You collect valid, reproducible and accurate data to provide evidence

Presenting DataEdit

Put data into a table. Draw a bar chart with whole numbers on squared paper. Fill out a blank table you have been given or copied. Draw a bar chart with some help. Draw a table and calculate mean values. Draw a bar chart independently or scatter graph with help. Draw your own table with the headings and units. Draw a simple scatter graph with a line of best fit. Use a consistent number of decimal places in your work. Select appropriate graphs, and scales, plotting complex data accurately.

Evaluating DataEdit

Suggest improvements Explain improvements you have suggested Identify strengths and weaknesses in your data. Identify errors and ways to avoid them. Use particular values to discuss the precision and reproducibility of your data. Identify the types of errors from the data and ways to reduce their effect. Use the data to make conclusions about the reproducibility, accuracy and precision of your data and spot errors in the data and suggest ways to reduce their effects.


Say what happened Say what happened and why. Describe the patterns in data and how strong the evidence is for your conclusion. Describe and explain the relationships between variables. Describe the limits of your data. Describe the mathematical relationships between variables. Use secondary evidence in your conclusion and describe the limits to the validity of your conclusion

Scientific WritingEdit

You can write simple statements of fact without keywords. You state facts to support your explanations You write in full sentences using keywords with few spelling mistakes. Your explanations use simple models. You have a wide knowledge and use detailed models confidently. Sentences and paragraphs are linked with connectives. Your explanation uses detailed and appropriate subject knowledge in a logical sequence and is illustrated with relevant evidence and examples.