In this activity children learn about sound and plan an investigation to find out if you can still detect sound when your ears are covered.
Scientists resolve a century-long debate over whether cephalopods, the group of sea creatures that includes octopus, squid, cuttlefish and nautiluses, can hear sounds underwater. Compared to fish, octopus and squid do not appear to hear particularly well. However, the fact they can hear raises the possibility that these intelligent animals may use sound to catch prey, communicate with one another or listen out for predators.
Children will learn about sound and plan an investigation to find out if you can still detect sound even if your ears are covered.
- that sound is a vibration which can travel through different media
- that a sound has reached them by travelling through solid e.g brick, wood and gas (air)
Children will learn:
- to record eg in a table, observations indicating how well sound travels through different materials
- to generalise that sound can travel through solids, liquids and gases
These resources were initially developed in partnership with the Centre for Science Education, Sheffield Hallam University.