Objects and the Materials They Are Made From: Mechanism
≈ 24 minMechanism
Follow the mechanism step by step and distinguish what causes the change from what is merely observed.
This extension applies that lens specifically to Objects and the Materials They Are Made From.
An object is a thing, like a spoon, a chair or a bottle. A material is what an object is made from, like metal, wood or plastic.
One object can be made from several materials. A school shoe, for example, has a rubber sole, a leather top and cloth laces — one object, three materials.
Here are some everyday objects and the materials they are made from:
| Object | Made from |
|---|---|
| Window | Glass |
| Taxi tyre | Rubber |
| Jersey | Wool |
| Brick | Clay |
| Cooldrink bottle | Plastic |
Worked example. A wooden spoon and a metal spoon are the same object (a spoon) made from different materials (wood and metal). The material changes how the object behaves: the metal spoon gets hot when it stirs a pot on the stove, but the wooden spoon stays cool enough to hold.
Natural Sciences — Grade 4 — Mechanism: A window is usually made from which material?
Natural Sciences — Grade 4 — Mechanism: What material are most cooldrink bottles and shopping bags made from?
Natural Sciences — Grade 4 — Mechanism: Which of these is a material, not an object?
Name the original topic being extended by this mechanism lesson.
Which statement is the best evidence-led starting point for Objects and the Materials They Are Made From: Mechanism?