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Good vibrations

Science Year 4
This unit is part of Year 4 Science Listen Up!

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Objectives

Explore sound further and investigate vibrations and how sound travels.

Science Objectives
i) Identify how sounds are made, associating some of them with something vibrating.

ii) Recognise that vibrations from sounds travel through a medium to the ear.

iii) Recognise that sounds get fainter as the distance from the sound source increases.

Working Scientifically

  1. Ask relevant questions and use different types of scientific enquiries to answer them.
  2. Set up simple practical enquiries and comparative and fair tests.
  3. Report on findings from enquiries, including oral and written explanations, displays or presentations of results and conclusions.

You Will Need

Provided Resources

  • Instructions for making a string telephone

Additional Resources

  • Drum and beater
  • Bowl of water and tuning fork (1 set per table)
  • Paper or plastic cups (with a small hole punched in the bottom)
  • Long lengths of string
  • Dry rice

Weblinks
How sound is made from www.bbc.co.uk

Lesson Planning

Teaching

  • Explain that sounds are made when an object vibrates and begin to understand that we hear sounds when the vibrations travel from a source through a medium to our ears.
  • Use this knowledge to recognise why sounds get fainter when you are further from the source of the sound.

Activities

  1. Learn that there are many kinds of sound and that there are many ways of making sound.
  2. Understand that sound is made through vibrations from a source.
  3. Research how sound travels.
  4. Know that sound travels through different mediums, including air, water and solids.
  5. Recognise that sounds get fainter as the distance from the sound source increases.

Investigation - exploring/problem solving
Explore sound further and investigate vibrations and how sound travels.

Vocabulary
Sound, transmit, medium, air, water, solid, vibrations, source, sound waves, particles, travel

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