What this topic covers
Topic C6: Global challenges has 3 subtopics:
- Improving processes and products
- Organic chemistry
- Interpreting and interacting with earth systems
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GCSE OCR Higher Chemistry · Topic 6 of 7
Topic C6: Global challenges – GCSE OCR Higher Chemistry revision notes
Choose a subtopic. Topic C6: Global challenges covers Improving processes and products, Organic chemistry, and Interpreting and interacting with earth systems in GCSE OCR Higher Chemistry. 85 lessons in 3 subtopics.
Revise Topic C6: Global challenges for GCSE OCR Higher Chemistry, including Improving processes and products. 85 lessons across 3 subtopics.
85
Lessons
3
Subtopics
Topic C6: Global challenges lessons by subtopic
85 lessons, grouped by subtopic.
Improving processes and products
- Properties of Transition Metals vs Group 1 Elements
- Examples of Transition Metal Properties
- Understanding Percentage Yield and Why Reactions Don't Give 100% Yield
- Calculating Percentage Yield and Theoretical Mass
- The Four Stages of Life Cycle Assessment
- Challenges and Limitations of Life Cycle Assessment
- Comparing Shopping Bags: A Practical LCA
- Earth's Resources and Human Needs
- Data Analysis and Sustainable Development
- Understanding Corrosion and Rusting Experiments
- Preventing Corrosion Through Barrier Methods
- Sacrificial Protection and Galvanising
- Understanding Atom Economy
- Calculating and Applying Atom Economy
- Introduction to Transition Metal Properties
- Transition Metal Examples: From Chromium to Copper
- NPK fertilisers and their importance
- Processing phosphate rock to make fertilisers
- Industrial vs laboratory production of fertilisers
- What is Potable Water and How Do We Make It?
- Water Treatment for Different Sources
- Common Alloys and Their Properties
- Analysing Alloy Compositions and Applications
- The Three Rs: Reduce, Reuse, Recycle
- Recycling in Practice: Glass and Metals
- Evaluating Resource Reduction Strategies
- Types of Polymers and Their Production
- Glass and Clay Ceramics
- Material Properties and Composites
- Physical Treatment of Waste Water
- Biological Treatment of Waste Water
- Why We Need New Methods to Extract Metals
- Processing and Evaluating Alternative Metal Extraction Methods
Organic chemistry
- What are Addition Polymers?
- Drawing Addition Polymerisation Reactions
- Introduction to Alkenes and Their General Formula
- Naming and Representing Alkenes
- What is crude oil and where does it come from?
- Understanding alkanes - the main hydrocarbons in crude oil
- Representing and recognising alkane molecules
- How Cells and Batteries Work
- Types of Cells and Batteries
- Introduction to Fuel Cells
- Comparing Fuel Cells with Batteries and Half Equations
- Separating Crude Oil by Fractional Distillation
- From Crude Oil to Modern Life - Fuels and Petrochemicals
- Introduction to Alkenes and Their Structure
- Addition Reactions of Alkenes
- Understanding Condensation Polymerisation
- Formation of Polyesters from Ethanediol and Hexanedioic Acid
- Introduction to Alcohols and Their Structure
- Reactions and Properties of Alcohols
- Fermentation and Alcohol Production
- Amino Acids and Polypeptide Formation
- How hydrocarbon size affects properties
- Combustion of hydrocarbon fuels
- Introduction to Carboxylic Acids
- Chemical Properties of Carboxylic Acids
- Introduction to Cracking and Its Methods
- Alkenes: Properties and Testing
- Uses and Importance of Cracking Products
- DNA Structure and Function
- Naturally Occurring Polymers and Their Monomers
Interpreting and interacting with earth systems
- What are greenhouse gases and why are they important?
- How does the greenhouse effect work?
- The composition of today's atmosphere
- The stability of atmospheric composition
- Fuel Composition and Combustion Products
- Atmospheric Pollutants from Fuel Combustion
- Earth's Resources and Human Needs
- Data Analysis and Sustainable Development
- How Earth's Early Atmosphere Formed
- Changes in Early Atmospheric Composition
- Human Activities That Increase Greenhouse Gases
- Evaluating Climate Change Evidence and Scientific Communication
- Toxic and Respiratory Pollutants
- Particulate Matter and Global Dimming
- How Photosynthesis Increased Atmospheric Oxygen
- Understanding Global Climate Change
- Scale and Implications of Climate Change
- How Earth's Atmosphere Changed Over Time
- How Photosynthesis Reduced Carbon Dioxide
- Formation of Carbon-Rich Deposits
- Understanding Carbon Footprints
- Reducing Carbon Footprints
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Frequently asked questions
What is Topic C6: Global challenges?
Topic C6: Global challenges covers Improving processes and products, Organic chemistry, and Interpreting and interacting with earth systems in GCSE OCR Higher Chemistry. 85 lessons in 3 subtopics.
What is a polypeptide?
A polypeptide is a polymer formed from many amino acids joined by peptide bonds through condensation polymerisation. The Amino Acids and Polypeptide Formation notes cover this in full.
What is the equation for photosynthesis?
The balanced equation for photosynthesis is 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂. The How Photosynthesis Increased Atmospheric Oxygen notes cover this in full.
How do you calculate percentage change?
Percentage change = (new value - old value) ÷ old value × 100. The Data Analysis and Sustainable Development notes cover this in full.
How old is the Earth?
The Earth is about 4.6 billion years old. The How Earth's Early Atmosphere Formed notes cover this in full.
What is the word equation for photosynthesis?
The word equation for photosynthesis is carbon dioxide + water → glucose + oxygen, in the presence of light and chlorophyll. The How Photosynthesis Reduced Carbon Dioxide notes cover this in full.
What is the formula of ethanol?
Ethanol can be written as CH₃CH₂OH or C₂H₅OH, and its molecular formula is C₂H₆O. The Introduction to Alcohols and Their Structure notes cover this in full.
What is DNA?
DNA (deoxyribonucleic acid) is a large molecule essential for life that encodes genetic instructions for the development and functioning of living organisms and viruses. The DNA Structure and Function notes cover this in full.
What are the three Rs in chemistry?
The three Rs are reduce, reuse and recycle, and the hierarchy matters: reduce first, then reuse, then recycle. The Evaluating Resource Reduction Strategies notes cover this in full.