Polymers – Lesson & Worksheet – Unit 4 – IGCSE Chemistry

Polymers – Lesson & Worksheet – Unit 4 – IGCSE Chemistry
Addition Polymerisation, Repeat Units & Environmental Concerns (Triple Only)

This Synapse Science resource introduces the concept of polymers as part of the Triple Science organic chemistry content in Unit 4. Students explore how alkene monomers form long-chain addition polymers, learn how to draw repeat units, and analyse real-world environmental challenges associated with plastic disposal.

TOPICS COVERED – SPECIFICATION POINTS

• 4.44: Know that an addition polymer is formed by joining up many small molecules called monomers
• 4.45: Understand how to draw the repeat unit of an addition polymer, including poly(ethene), poly(propene), poly(chloroethene), and (poly)tetrafluoroethene
• 4.46: Understand how to deduce the structure of a monomer from the repeat unit of an addition polymer and vice versa
• 4.47: Explain problems in the disposal of addition polymers

WHAT’S INCLUDED

• Editable PowerPoint lesson with clear diagrams and worked examples
• Printable worksheet with tasks on drawing repeat units and deducing monomers
• Structured questions on the environmental impact of addition polymers
• Real-world examples of plastics: PET, PVC, PTFE, and poly(propene)

KEY FEATURES

• Step-by-step guide to drawing repeat units and reversing the process
• Visuals comparing different polymer structures and uses
• Discussion of microplastics, landfill, burning, and recycling
• Fully aligned with Edexcel Unit 4 (Triple) and consistent Synapse Science formatting

KEYWORDS
Edexcel IGCSE Chemistry, Polymers, Addition Polymerisation, Monomers, Repeat Unit, Polyethene, Polypropene, PVC, PTFE, Plastic Pollution, Environmental Chemistry, Synapse Science, Triple Science, Unit 4, Lesson, Worksheet