Sound- unit-4
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Sound- unit-4
من طرف srimathi الخميس مارس 26, 2020 8:20 am
03.26.2020
08:14:45
Grade-4/ science- Revise the topics - sound volume and measuring sound volume- learner’s book- pages 60 and 61
Main points-
Small vibrations cause soft sounds
Large vibrations cause loud sounds
We measure sounds in units called decibels
We can use a sound level meter to measure the volume of sounds.
Homework was given on sounds
08:14:45
Grade-4/ science- Revise the topics - sound volume and measuring sound volume- learner’s book- pages 60 and 61
Main points-
Small vibrations cause soft sounds
Large vibrations cause loud sounds
We measure sounds in units called decibels
We can use a sound level meter to measure the volume of sounds.
Homework was given on sounds
srimathi- المساهمات : 990
تاريخ التسجيل : 15/09/2018
صفحة 1 من اصل 1
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