Natural sciences
The earth and beyond
Properties and uses of materials
Educator section
Memorandum
Assignment 1 (group work):
TYPE OF MATERIAL | USE |
Metals | Used to make knives, forks, pots, pans, and ornaments. (There can be many other examples) |
Fibres | Curtains, mats, clothes are made from fibres. (There can be many other examples) |
Plastic | Plastic bowls, combs, brushes, etc. (There can be many other examples) |
Glass | Window panes, drinking glasses, wine glasses, ashtrays etc. (There can be many other examples) |
Wood | Furniture, tables, ornaments etc. (There can be many other examples) |
Leaner section
Content
Activity: to identify materials [lo 1.1, lo 2.2]
You already know that everything on earth consists of matter, (plants, animals, and non-living things) from a small speck of dust to a large planet.
A pane of glass in a window looks different from a drinking glass, but both are made from the same material, glass. Some substances may look similar and have the same colour but might differ in smell, taste, hardness, texture and elasticity. These are called the properties of materials and are used to describe the materials.
ASSIGNMENT (GROUP WORK)
- Work in groups. Look in a newspaper or magazine for a picture that shows different materials.
- Indicate the various kinds of materials that are shown in the picture and say what they are used for.
Type of Material | Uses |
Metal | |
Fibres | ______________________________________________ |
Plastic | ____________________________________________________________________________________________ |
Glass | ____________________________________________________________________________________________ |
Wood | ____________________________________________________________________________________________ |
Assessment
Learning Outcome 1: Learners respond confidently to their desire to learn about natural phenomena; they investigate relationships and solve problems within the context of science, technology and the environment.
Assessment Standard 1.1: We know this when the learner plans investigations: helps to clarify focus questions for investigation and describes the kind of information which would be needed to answer the question.
Learning Outcome 2: Learners know, interpret and apply scientific, technological and environmental knowledge.
Assessment Standard 2.2: We know this when the learner categorises information: categorises objects and organisms by two variables.