English National Curriculum - Science
Mission Objectives
Name and describe the main fractions obtained from crude oil and their common uses
Explain how fractional distillation separates crude oil into fractions and how chain length affects their properties
Predict how changes in hydrocarbon chain length influence properties such as colour, viscosity, flammability and boiling point
Save files related to this lesson
Words and meanings to learn
viscosity
a measure of how thick or runny a liquid is — the higher the viscosity, the thicker and less easily it flows
volatility
a measure of how easily a liquid evaporates and turns into a gas — substances with lower boiling points are more volatile
fractions
groups of hydrocarbons from crude oil that have similar chain lengths and boiling points
fuel
a substance that releases energy when it burns, usually by reacting with oxygen in a combustion reaction
fractional distillation
a process used to separate a mixture of liquids with different boiling points, such as separating crude oil into fractions
Samantha is an accomplished science educator with over 15 years of leadership experience and a strong background in scientific analysis. She has a proven record of leading departments effectively, improving practice, and working collaboratively with stakeholders.
In her current work, Samantha embeds evidence-informed pedagogical principles such as retrieval practice, clear modelling, and effective sequencing to support high-quality curriculum design and professional development. She draws on assessment insight and common misconceptions to help teachers secure strong student understanding.
She is a former Head of Chemistry and Sixth Form Tutor at Ilkley Grammar School, with extensive Key Stage 4 and 5 experience, and an AQA examiner, giving her valuable insight into assessment standards and exam requirements.
In her spare time, Samantha enjoys playing the accordion with her local orchestra and has recently taken up cricket.
Resources:
Teacher demo: fractional distillation and compare the viscosity and flammability of some fractions
Expert film
Mission assignment film
Address
Developing Experts Limited
Exchange Street Buildings
35-37 Exchange Street
Norwich
NR2 1DP
UK
Phone
01603 273515
Email
[email protected]
Copyright 2026 Developing Experts, All rights reserved.
Unlock expert-designed lessons, resources, and assessments tailored for educators. No credit card required.
Claim Your Free Trial →
