A digital version of the P1.18 Infra sound lesson

This resource contains a 10-slide theory lesson and a “sound wave” revision worksheet.
Slide number 1 is an introductory slide explaining the lessons learning objectives.
Slide number 2 is an animated GIF reminder that sound is a longitudinal wave.
Slide 3 is an excellent summary image to show the frequencies of infrasound, sound and ultrasound and the animals that can use each one.
Slide 4 is a revision of basic wave structure and terminology.
Slide 5 is a prompt for the students to use the revision worksheet on sound.
Slide 6 looks at some of the large mammals that can communicate over hundreds of Km using infrasound.
Slide 7 explains the volcanic eruptions also produce infrasound which can be remotely monitored.
Slide 8 is the book-work reference.
Slide 9 contains the image credits.
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