Waves & Different Materials
Explain how waves can be absorbed, transmitted, or reflected by different materials, and apply these interactions to explain colour perception, sight, communication technologies, and the effects of different surfaces on wave behaviour
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1858 concepts · 9 subjects
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1 approach
Waves & Different Materials means practising the idea at the table with a simple hands-on check. We will demo once, then your child tries.
Materials: A torch or phone light and a blank wall OR a rubber band / ruler for sound; Paper for notes. 1. Say the goal of Waves & Different Materials in plain words once. 2. Adult makes one light or sound change (shadow size, or pitch by tightening) and names what changed. 3. Child makes three controlled changes and records what they see or hear. 4. Fresh check: one fresh cause-and-effect observation. Record and stop. Done: three recorded light/sound changes with a cause each. Proof: parent note of examples and results. Stop: End after the fresh check; keep optional challenge for another day.
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Start practiceWaves & Different Materials practice
Practice key ideas from Waves & Different Materials.
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Learning resources
Extra practice links — they do not replace Gakuva’s teaching approach.
PhET Interactive Simulations · Practice link — not the full lesson
Wave on a String
Before you open · source notes
Wave on a String supports hands-on exploration for Waves & Different Materials. Not every lab worksheet.
Free interactive page, no sign-in required for the tested path.
Before you openAsk the learner what they changed in the sim or page and what they observed.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public PhET Interactive Simulations page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.
PhET Interactive Simulations. “Wave on a String.” External page; Gakuva does not copy, host, embed, or redistribute materials.
Unknown — link only
Check understanding
- Explains the difference between absorption, transmission, and reflection of waves
- Uses the three interactions to explain how we see coloured objects
- Explains how radio waves, visible light, and infrared are used in different communication technologies
- Describes how the properties of a surface (colour, texture, material) determine how it interacts with radiation
“If your child was wearing a black t-shirt on a sunny day and a friend was wearing white, could they explain using wave interactions why the black shirt gets hotter — and which properties of materials determine how they absorb or reflect radiation?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Waves, Light & Sound
- Age range
- Ages 12–13
Standards