AIR- ITS MECHANICAL PROPERTIES

BASIC TECHNOLOGY JSS3 SECOND TERM

WEEK – SIX

AIR- ITS MECHANICAL PROPERTIES

PERFORMANCE OBJECTIVE

By the end of the lesson, the students should be able to learn:

• Introduction  
• Mechanical Properties of Air
• Experiments and Deductions
• Air: Technological Applications

REFERENCE MATERIALS

1. NERDC, INTRODUCTORY TECHNOLOGY FOR JSS, BOOK 3
2. EVANS, INTRODUCTORY TECHNOLOGY FOR JSS, BOOK 3

CONTENT

Introduction

We feel the pressure of air, as it surrounds us like water surrounds the fish in the sea. The presence of air is felt as it blows over our body on windy days, or as it blows away light object thrown out of moving vehicle.

Air contains nitrogen, oxygen and other gases. Air thins out gradually as we go higher above the sea…