SCIENCE COMBINED SYLLABUS (0653)
2023-2024 Syllabus (PDF, 791KB)
Chemistry C1 - What to know
Core:
State the distinguishing properties of solids, liquids and gasses
Describe the structure of solids, liquids and gasses in terms of particle separation, arrangement and types of motion
Describe the changes in terms of melting, boiling, evaporation, freezing and condensation
Describe qualitatively the pressure and temperature of a gas in terms of the motion of its particles
Demonstrate understanding of the terms of Atom, Molecule and Ion
Supplement:
Explain changes of state in terms of particle theory and the energy changes involved
Chemistry C2 - What to know
Core:
Name and suggest appropriate apparatus for measurement of time, temperature, mass and volume, including burettes, pipettes and measuring cylinders
Interpret simple cromatograms
Describe and explain methods of separation and purification by the use of a suitable solvent, filtration, crystalization, distillation, fractional distillation and paper cromatography
Suggest a suitable separation and purification techniques, given the information about the substances involved.
Supplement:
Interpret simple cromatograms, including the use of R values
Command Words
Balance: Students need to balance a chemical equation.
Calculate: Students should use numbers given in the question to work out the answer.
Choose: Select from a range of alternatives.
Compare: This requires the student to describe the similarities and/or differences between things, not just write about one.
Define: Specify the meaning of something.
Describe: Students may be asked to recall some facts, events or process in an accurate way.
Design: Set out how something will be done.
Determine: Use given data or information to obtain and answer.
Draw: To produce, or add to, a diagram.
Estimate: Assign an approximate value.
Evaluate: Students should use the information supplied, as well as their knowledge and understanding, to consider evidence for and against when making a judgement.
Explain: Students should make something clear, or state the reasons for something happening.
Give: Only a short answer is required, not an explanation or a description.
Identify: Name or otherwise characterise.
Justify: Use evidence from the information supplied to support an answer.
Label: Provide appropriate names on a diagram.
Measure: Find an item of data for a given quantity.
Name: Only a short answer is required, not an explanation or a description. Often it can be answered with a single word, phrase or sentence.
Plan: Write a method.
Plot: Mark on a graph using data given.
Predict: Give a plausible outcome.
Show: Provide structured evidence to reach a conclusion.
Sketch: Draw approximately.
Suggest: This term is used in questions where students need to apply their knowledge and understanding to a new situation.
Use: The answer must be based on the information given in the question. Unless the information given in the question is used, no marks can be given. In some cases students might be asked to use their own knowledge and understanding.
Write: Only a short answer is required, not an explanation or a description.