Opaque, transparent and translucent
I can compare different materials based on how transparent they are.
Opaque, transparent and translucent
I can compare different materials based on how transparent they are.
Lesson details
Key learning points
- Materials can be compared and classified according to how much light can pass through them.
- Opaque materials do not let light pass through them.
- Transparent materials allow light through so objects can clearly be seen through them.
- Translucent materials allow some light to pass through but are not completely see-through.
Common misconception
All materials that let light through them are transparent.
Explanation of the difference between materials that are transparent and those that are translucent.
Keywords
Materials - A material is what an object is made from. An object can be made from more than one material.
Classify - To classify is to sort objects into groups.
Opaque - Light cannot pass through objects that are opaque.
Transparent - Transparent materials are completely see-through.
Translucent - Translucent materials allow some light to pass through but are not completely see-through.
Equipment
Torch and materials for testing: a plastic brick. wooden block, glasses, glass jug, book, magnifying glass, tracing paper, clear plastic bag, rubber band (optional).
Content guidance
- Exploration of objects
Supervision
Adult supervision recommended
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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