Science Waves, Light & Sound Language 9–11 yrs

Wave Behaviour Vocabulary

波的行为词汇

Description

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

Mastery Evidence

✓ 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

Assessment Prompt

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?