TOPIC 4: USING MATERIALS.

LEARNING OUTCOMES The learner should be able to:

a. know that materials used in everyday life can be classified into natural and synthetic group, and how this affects their use in everyday life(s,k)

b. understand how the physical propertiesof polymers determine uses in everyday life such as in building, as fabrics, fabricating utensils used in homes, etc. (k, u)

c. knowaboutthemolecularstructures of materials and relate this to their use (k, u)

d. know that polymers areuseful long chain molecules made by both natural and syntheticprocesses (k, u)

e. understand how the physical propertiesof polymers determine uses in everyday life such as in building, as fabrics, fabricating utensils used in homes, etc. (k, u)

f. knowhowcommonmaterials can pollute environment and which materials can be recycled(k)

4.1: Classification of Materials Used in Everyday Life

4.2: Physical and Mechanical Properties of Polymers and their Uses in Everyday Life

4.3: The Molecular Structure of Materials and their Uses

4.4: Building Materials

4.5: Natural and Synthetic Processes of Making Polymers

4.6: Recycling of Common Materials that Pollute the Environment

4.7: Effect of Heat on the Structure of Materials