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.

Exercise 1.1: Why do we need heat?