Oil, water and emulsifier

Description

Oil, Water and Emulsifiers — Chemistry Lab Manual and Answer Key Why does soap help wash away grease? Turn an everyday question into a practical chemistry investigation. Designed for Grade 11 Humanities students following the Lebanese programme, this 50-minute activity explores how hand soap and dishwashing liquid affect the separation of oil and water. Students make predictions, conduct a fair comparison, record observations and explain their results using accessible chemistry concepts. The resource includes: A four-page student lab manual with clear instructions and safety guidance. Four pre-lab and eight post-lab questions. Observation tables and space for students’ answers. An optional microscope activity to examine oil droplets. A separate four-page answer key with suggested observations and explanations. Connects emulsions, polarity and surfactants to cleaning and digestion while developing observation, reasoning and evaluation skills.