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Alarming Clock

Topic: 5F Changing sounds

A "woodpecker clock" invented by a 22-year-old student has replaced the annoying clangs and buzzes of traditional alarms with a gentle tapping wake-up.

In this activity children will investigate how this clock works and determine how they would change the sound.

Large activity image
 
Try the Activity Learning Objective

Click to Download Alarming Clock teacher notes
Alarming Clock teacher notes

Click to Download Alarming Clock activity
Alarming Clock activity

   

to generalise that when a sound is made something is vibrating

Children will demonstrate this by completing the task on page 1 successfully.

to state that a sound has reached them by travelling through solid e.g. brick, wood and gas (air)

Children will demonstrate this by completing the task on page 2 successfully.

to record e.g. in a table observations indicating how well sound travels through different materials

Children will demonstrate this by completing the task on page 3 successfully.

to generalise that sound can travel through solids, liquids and gases

Children will demonstrate this by completing the task on page 3 successfully.

   
Web Links

Telegraph
The news story behind the activity

BBC Science Clips
BBC online lesson on sound. Also some good IAW activities on sound

Kids Health
Interactive site on how your ear works

Natalie Duckett
The engineer behind the invention

National Institute on Deafness
A site full of activities connected to hearing and sounds; includes an interactive quiz

PPPST.COM
Free PowerPoint presentations about sound and hearing

Kill o' the Grange National School
Lots of practical ideas connected to sound and hearing including how to make a paper banger

 
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