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ScienceWaves, Light & SoundAges 9–11

Wave Behaviour Vocabulary

Use technical vocabulary for wave behaviour — refraction, absorption, reflection, scattering, amplitude, frequency, wavelength, echo, spectrum, angle of incidence, angle of reflection — and apply these when explaining how light and sound travel and interact with different materials

Lesson

Set out your lesson

“Wave Behaviour Vocabulary means practising the idea at the table with a simple hands-on check. We will demo once, then your child tries.”

Bring to the table

  • A torch or phone light and a blank wall OR a rubber band / ruler for sound
  • Paper for notes
Extra for the adult

Worked example. Move the torch closer: the shadow gets bigger. Distance caused the change.

Optional challenge. For Wave Behaviour Vocabulary, add one harder example after success.

What to notice. Keep one parent note: examples tried; results; support used. This session samples Wave Behaviour Vocabulary, not mastery.

Continue learning
Share and support
Family records and proof options

Keep a record of your learning

Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.

Practice this concept

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Gakuva activity

Wave Behaviour Vocabulary practice

Practice key ideas from Wave Behaviour Vocabulary.

Free · no login · no ads · Practice answers and completion are not saved. Parent observation remains the lesson record.

Learning resources

Extra practice links — they do not replace Gakuva’s teaching approach.

PhET Interactive Simulations · Practice link — not the full lesson

Sound Waves

Open practice (new tab)
Before you open · source notes

Sound Waves supports hands-on exploration for Wave Behaviour Vocabulary. Not every lab worksheet.

Free interactive page, no sign-in required for the tested path.

Before you open

Ask 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. “Sound Waves.” External page; Gakuva does not copy, host, embed, or redistribute materials.

Unknown — link only

Check understanding

  • Use 'refraction' correctly to explain why a straw appears bent in a glass of water
  • Distinguish 'reflection' from 'refraction' using the correct definitions
  • Explain what an echo is using the vocabulary of sound reflection correctly
“Can your child explain why a straw looks bent in a glass of water using a proper science word — or tell you what's actually happening when you hear an echo?”

Curriculum record

Type
Language
Subject
Science
Domain
Waves, Light & Sound
Age range
Ages 9–11

Standards

acara-v9:AC9S5U03the-ontario-curriculum-science-and-technology-20:ON-SCI-2022-G4-C2.3the-ontario-curriculum-science-and-technology-20:ON-SCI-2022-G4-C2.4