SCIENCE – TERM II
Unit 1
Heat
Learning Objectives
* To
list out the sources of heat
* To
define heat
* To
distinguish hot and cold objects
* To
define temperature
* To
differentiate heat and temperature
* To
understand the conditions for thermal equilibrium
* To
understand why thermal expansion take place in solids
* To list out the practical
applications of thermal expansion in day - to - day life
Introduction
We are all familiar with heat. We feel it on
our body when the sun shines, we use heat for cooking our food, We reduce the
heat by adding ice cubes while preparing fruit juice. Let us learn about
sources of heat.
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