Properties of materials III

BASIC SCIENCE JSS1 First term

Sub-Theme: Safety, Material and Processing

Theme Understanding Basic Science and Technology

WEEK 9

Properties of materials 3

Performance objectives

Students should be able to:

1. Define what metals are
2. Classify metals into ferrous and non ferrous metals
3. Describe the properties of metals.

Content

Metals

 Metals are solid materials obtained from a natural product known as iron ore found in some places under the earth.

Types of Metals

Metals are classified into two groups namely, ferrous and non-ferrous metals. 

(i). ferrous metals: These are metals that contain iron. As such, they can be attracted to any magnetic properties. Examples include steel, razor blade and nails. 

(ii). Non-ferrous metals: These are metals that do…