Sound Travels Through Materials

CONCEPTUAL

Science›Waves, Light & Sound|Ages 8—9|ID: mt_ydtcIBwHB9

Recognise that vibrations from sounds travel through a medium (solid, liquid, or gas) to the ear

Mastery Evidence

Explain that sound vibrations need a material (medium) to travel through — they can't travel in a vacuum
Give examples of sound travelling through different media: air, water, solid objects
Describe how a string telephone works: voice vibrates the cup, vibrations travel along the string to the other cup

“Can [child] explain why you can hear someone talking through a wall, and why sound travels through water when you're swimming underwater?”

Y4.Sci.Snd.2The national curriculum in England

Sound vibrations travelling to the ear

recognise that vibrations from sounds travel through a medium to the ear

Science · Key Stage 2

Show full prerequisite tree

Vibrations & Sound hard
Must know sound comes from vibrations before learning vibrations travel through media
- Light & Sound Vocabulary hard
  Understanding vibrating materials and sound requires 'vibration' vocabulary
- Communication with Light & Sound hard
  Must understand how sound works before designing a communication device using it
  - Light & Seeing in the Dark hard
    Must understand how light works before designing a communication device using it
    - Light & Sound Vocabulary hard
      Observing that objects need illumination to be seen requires the 'light source' vocabulary
Light & Sound Vocabulary hard
Describing vibrations travelling through a medium requires vibration vocabulary