GCSE Edexcel Foundation Combined Science Chemistry · Topic 7 of 7
Choose a subtopic. Study hydrocarbons, crude oil, Earth resources, the atmosphere, and environmental impact. 34 lessons in 5 subtopics.
Revise Topic 8: Fuels and Earth science for GCSE Edexcel Foundation Combined Science Chemistry, including Carbon compounds as fuels and feedstock.
34
Lessons
5
Subtopics
Topic 8: Fuels and Earth science has 5 subtopics:
34 lessons, grouped by subtopic.
Go back to the full GCSE Edexcel Foundation Combined Science Chemistry topic list, or practise this topic with past-paper questions.
Study hydrocarbons, crude oil, Earth resources, the atmosphere, and environmental impact. 34 lessons in 5 subtopics.
The balanced equation for photosynthesis is 6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂. The How Photosynthesis Increased Atmospheric Oxygen notes cover this in full.
Percentage change = (new value - old value) ÷ old value × 100. The Data Analysis and Sustainable Development notes cover this in full.
The Earth is about 4.6 billion years old. The How Earth's Early Atmosphere Formed notes cover this in full.
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.
A carbon footprint is the total amount of greenhouse gases emitted over the full life cycle of a product, service or event. The Understanding Carbon Footprints notes cover this in full.
Crude oil is a finite fossil fuel found in rocks, formed from the remains of ancient biomass, mainly plankton, buried in mud millions of years ago. The What is crude oil and where does it come from? notes cover this in full.
LPG, or liquefied petroleum gas, is a crude oil fraction containing short-chain hydrocarbons. The From Crude Oil to Modern Life - Fuels and Petrochemicals notes cover this in full.
Greenhouse gases are gases that can absorb and re-emit infrared radiation, keeping Earth warm. The What are greenhouse gases and why are they important? notes cover this in full.