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Last updated

26 June 2025

pdf, 263.07 KB
pdf, 263.07 KB
Percentage of Oxygen in Air - Required Practical 2.14

This resource provides a structured, student-friendly worksheet for Required Practical 2.14: Determine the approximate percentage by volume of oxygen in air using a metal or non-metal. It is fully aligned with the Edexcel IGCSE Chemistry specification and helps students understand how volume changes during oxidation can be used to calculate gas composition.

Designed to support Paper 1 required practical content and the development of core laboratory skills, this resource walks students through either the iron wool or phosphorus method with clarity and care.

Paper 1 Specification Covered
  • 2.14: Determine the approximate percentage by volume of oxygen in air using a metal or a non-metal
Features
  • Curriculum Aligned: Specification clearly included on the worksheet
  • Practical Flow: Background → Aim → Apparatus → Method → Results Table → Conclusion → Teacher Notes
  • Dual Method Included: Iron wool (student-led) and phosphorus (teacher demo) versions
  • Student-Focused Layout: Space provided for observations, analysis, and conclusion writing
  • Model Answer Provided: Example conclusion included in Teacher Notes
  • MSDS Summary: Safety notes for iron wool and white phosphorus
  • Assessment Support: Integrated 3-level practical rubric (Developing → Securing → Exceeding)
  • Flexible Use: Designed for a single lesson, suitable for revision and exam prep
  • Cohesive Design: Consistent Synapse Science format matches other Chemistry practicals
What’s Included
  • 1 x Required Practical 2.14 Student Worksheet
  • 1 x Teacher and Technician Notes section (included on the sheet)
Keywords

Edexcel IGCSE Chemistry, Required Practical, Air Composition, Oxygen, Iron Wool, Phosphorus, Gas Volume, Practical Worksheet, Synapse Science, Paper 1, Practical Skills, Teacher Notes

Get this resource as part of a bundle and save up to 38%

A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

Bundle

Edexcel IGCSE Chemistry – Unit 2 Complete Bundle (Paper 1)

## Edexcel IGCSE Chemistry – Unit 2 Complete Bundle (Paper 1) **Inorganic Chemistry – Group Trends, Reactivity, Acids & Bases, Chemical Tests + Required Practicals** **Lessons, Worksheets, Practicals, Teacher Notes** This Synapse Science bundle includes all lessons, worksheets, and required practicals for **Unit 2 – Inorganic Chemistry (Paper 1 only)** of the Edexcel IGCSE Chemistry specification. Every resource is clearly structured and professionally designed, with a focus on exam alignment and engaging delivery. This bundle is perfect for building a high-quality, fully resourced Scheme of Work for Unit 2. --- 🔢 Topics Covered in Spec Order (Paper 1 Only) ** (a) Group 1 – Alkali Metals ** - Group 1 Elements – Lesson & Worksheet ** (b) Group 7 – Halogens ** - Group 7 Elements – Lesson & Worksheet **(c) Gases in the Atmosphere ** - Atmospheric Gases & Reactions with Oxygen – Lesson & Worksheet - Percentage of Oxygen in Air – Required Practical 2.14 - Combustion and The Greenhouse Effect – Lesson & Worksheet **(d) Reactivity Series ** - The Reactivity Series – Lesson & Worksheet - Rusting – Lesson, Worksheet & Practical - Oxidation & Reduction – Lesson & Worksheet ** (f) Acids, Alkalis and Titrations ** - Acids and Alkalis – Lesson & Practical - Neutralisation – Lesson & Worksheet **(g) Acids, Bases and Salt Preparations ** - Acids, Bases & Salts – Lesson & Worksheet - Making Soluble Salts – Lesson & Practical - Making Soluble Salts (Copper(II) Sulfate) – Required Practical 2.42 **(h) Chemical Tests ** - Chemical Tests: Flame & Gases – Lesson, Worksheet & Practicals - Chemical Tests: Cations & Anions – Lesson, Worksheet & Practical - Chemical Tests: Water – Lesson, Worksheet & Practical ## 📦 What’s Included - 20+ editable PowerPoint lessons - Printable and digital student worksheets - Required practical worksheets with teacher & technician notes - Mark schemes and model answers - Scaffolded tasks and revision-ready layouts - Consistent Synapse Science formatting for smooth delivery ## 🎯 Ideal For - Edexcel IGCSE Chemistry – Paper 1, Unit 2: Inorganic Chemistry - Teachers seeking a complete, spec-aligned Scheme of Work - Classroom teaching, assessment prep, or revision sessions --- ## Keywords Edexcel IGCSE Chemistry, Unit 2 Bundle, Inorganic Chemistry, Group 1, Group 7, Gases, Acids and Bases, Reactivity Series, Chemical Tests, Required Practical, Synapse Science, Worksheets, Lessons, Teacher Notes

£25.00

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