Combustible and Non-Combustible Substances

Author:B K Gowel & Sangeeta
8th CBSE
IMPORTANT

Combustible and Non-Combustible Substances: Overview

This topic focuses on combustible and non-combustible substances. It explains four types of combustion such as explosive combustion, spontaneous combustion, rapid combustion, and slow combustion.

Important Questions on Combustible and Non-Combustible Substances

EASY
IMPORTANT
SCIENCE For Class VIII>Materials>Combustion, Fuels and Flame>Combustible and Non-Combustible Substances> Q 1

Give one word for the following:
A material which gets ignited (catches fire).

EASY
IMPORTANT
SCIENCE For Class VIII>Materials>Combustion, Fuels and Flame>Combustible and Non-Combustible Substances> Q 2

An iron nail is a combustible substance.

EASY
IMPORTANT
SCIENCE For Class VIII>Materials>Combustion, Fuels and Flame>Combustible and Non-Combustible Substances> Q 3

Give one word for the following:
A material which does not get ignited.

EASY
IMPORTANT
SCIENCE For Class VIII>Materials>Combustion, Fuels and Flame>Combustible and Non-Combustible Substances> Q 4

What do you understand by combustible and non-combustible substances? Explain giving suitable examples.

MEDIUM
IMPORTANT
SCIENCE For Class VIII>Materials>Combustion, Fuels and Flame>Combustible and Non-Combustible Substances> Q 5

Which of the following are combustible materials? 
(a) coal
(b) salt
(c) lime
(d) alcohol
(e) cooking gas.