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A Comprehensive Guide to Homeschooling



What is the name given for burning in science?



What are the things that can burn quickly?



What is happening in a lighted candle?


The wax on and around the wick melts. Some of the wax boils and gives off a gas which catches fire. This produces heat which melts more wax. This boils and gives off more gas which continues burning. In a lighted candle, it is burning gas which produces the flame.


What is the gas required for burning?



What are formed in burning?

Chemicals called oxides


What are produced in burning?


  • Light
  • Heat
  • Flames
  • Gases
  • Smoke


What are the main factors needed for burning?


  • A burning substance
  • Oxygen
  • The certain temperature of a burning substance


What is meant by the ‘certain temperature of a burning substance’?

Burning substances need to be heated to a certain temperature before they will burn. This temperature is the certain temperature of a burning substance.




What are fuels?

A fuel is a material that is used to produce heat and other forms of energy.

E.g. – Wood and Charcoal


What happens when wood burns?


Things produced in burning are ash smoke and gasses

Things produced when wood burns


How is charcoal made?

Wood is burnt in a special oven called kilnThat oven gets less oxygen than usual. Therefore the wood does not burn completely to leave ash. Instead a black substance is made called, ‘charcoal’.


What are the uses of charcoal?


  • For cooking
  • For heating
  • For making metals from their ores
  • For drawing
  • For making paints
  • For making paper
  • For making inks
  • For making rubber
  • For making gunpowder
  • For making firecrackers