Properties of Materials I

Basic Technology J.S.S 1 First Term

WEEK 7&8

Properties of Materials I

Performance Objectives

Students should be able to:

1. Identify, classify and describe the properties of wood
2. List wood and its uses
3. Explain Natural and Artificial seasoning of defects

Content

Technological advancement over the years has taken several shapes, sizes, and form. The materials used in creating a technological piece include wood, metals, ceramics, rubber, and plastics; these materials come in different forms and each form performs unique functions.

Wood

Woods are identified by:

1. 1. Their colour
   2. Their classification into soft and hardwoods; their property e.g. hardwood has broad leaves while softwood has needle-like leaves.

There are trees all around us. Some are big while some are small. The major parts…