Week 15 - Introduction, Heat, Heating Technology and Thermal Energy

An Overview of the Module

	INTRODUCTION
	Heat is a powerful natural resource. When it is out of control it is dangerous and devastating.When managed correctly heat energy can be used to do work.

Exercise 1.1

ACTIVITY A: Why do we need heat?

Textbook Readings

Science in Action 7
pages 180 to 184
or
Science Focus 7
pages 188-190

Humans need heat to survive. Our bodies produce heat, but it is easily lost so we must develop a way to keep our body heat and/or warm our environment. Like most technologies, heat technologies have developed from simple to complex.

Humans also use heat to cook food, which kills micro-organisms that cause disease.

Study the following charts and answer the questions below.

The Development
of
Cooking Technologies

The Development
of
Heating Technologies

The Development
of
Insulation Technologies

Exercise 1.1: Why do we need heat?