Description
- Import of our company
- Compatible with the curriculum
- It is a training material designed to be used to explain the subject of expansion and contraction.
- When the material is heated, the metal expands and when cooled, contraction can be observed.
- Triangular cast iron base
- Product sizes:
– Height: 280mm
– Ball diameter: 20mm
– Chain length: 65mm (User can use longer chain)
INFORMATION: Molecules and atoms vibrate at higher temperatures and begin to separate from each other. This situation is called thermal expansion.
APPLICATION: Heat the rice ball. The heated ball will expand and will not be able to pass through the ring. When the ball cools, it will fit into the ring.Targeted Gains:
- From the heat-temperature relationship experiences, he deduces that the most obvious effect of heat on substances is warming-cooling.
- Confirms with examples from daily life that the volume of substances increases with the effect of heat.
- Establishes a relationship between heat exchange and expansion-contraction.
- Recognizes the positive and negative effects of expansion on our environment.
- Compares the expansion and contraction events in solids, liquids and gases.
- Investigates the cause of the gaps left between the train tracks.
- Explores the differences of these intervals in hot and cold climates.
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