This resource provides a selection of lesson plans, worksheets and teachers notes relating to sound at Year Four. They include activities which show that sounds are made when objects vibrate and that sounds travel through solids, liquids and gases. They also look at the structure of the ear, how vibrations are heard as sounds and discuss echoes and how bats or dolphins use echolocation. Ideas are also provided for investigating how well sound travels through different materials, discovering how instruments make sounds and exploring how to change the pitch and loudness. Provided by Hamilton Trust, these sessions have been written in line with the new national curriculum (published in 2013).

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