OCR GCSE 21st Century Chemistry (J244)
OCR GCSE 21st Century Chemistry
Chemistry, like Biology and Physics, consists of three written papers and a controlled assessment:
Modules are those from Core Science (C1, C2, C3) and Additional Science (C4, C5, C6) and Further Additional Science (C7).
C1: Air quality Module
• Which chemicals make up air, and which ones are pollutants? How do I make sense of data about air pollution?
• What chemical reactions produce air pollutants? What happens to these pollutants in the atmosphere?
• What choices can we make personally, locally, nationally or globally to improve air quality?
C2: Material choices Module
• How do we measure the properties of materials and why are the results useful?
• Why is crude oil important as a source of new materials such as plastics and fibres?
• Why does it help to know about the molecular structure of materials such as plastics and fibres?
• What is nanotechnology and why is it important?
C3: Chemicals in our lives – risks and benefits
• What were the origins of minerals in Britain that contribute to our economic wealth?
• Where does salt come from and why is it so important?
• Why do we need chemicals such as alkalis and chlorine and how do we make them?
• What can we do to make our use of chemicals safe and sustainable?
C4 – Chemical patters
~ What are the patterns in the properties of elements?
~ How do chemists explain the patterns in the properties of elements?
~ How do chemists explain the properties of compounds of Group 1 and Group 7 elements?
C5 – Chemicals of the natural environment
~ What types of chemicals make up the atmosphere?
~ What reactions happen in the hydrosphere?
~ What types of chemicals make up the Earth’s Lithosphere?
~ How can we extract useful metals from minerals?
C6 – Chemical systems
~ Chemicals and why we need them
~ Planning, carrying out and controlling a chemical synthesis
Unit C7: Chemistry in action
Topic 1 Qualitative analysis
Topic 2 Quantitative analysis
Topic 3 Electrolytic processes
Topic 4 Gases, equilibria and ammonia
Topic 5 Organic chemistry