KS3 ~ Year 7 ~ Loudness & Pitch

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 P2 ’Sound’.

For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience.

This lesson begins with an introduction into how sound can be ‘seen’ by using an oscilloscope. The PowerPoint then moves on to look at the differences between the ‘intensity’ of a sound and the ‘pitch’ of the sound. Students can copy and complete a set of sentences to summarise what they have learned so far as part of a ‘progress check’ - this work can then be marked using the mark scheme included.

Students will then be given two different sound waves, they will need to use what they have learned so far to write a description/comparison of each of the waves, a list of key words will be provided to hep students. A model answer to this question is included in the PowerPoint so students can self-assess their work once it is complete.

Students will now be given a worksheet of sound waves, along with a worksheet describing the sounds collected by the ‘Most Haunted’ team of a range of ghost sounds. Students will need to compare the description of the ghosts to the sound waves collected and match them correctly. This work can then be marked and corrected using the answers provided on the PowerPoint.

Students will now think about the frequencies that humans can hear compared to other animals. The first activity requires students to watch a video which plays a set of sounds starting with a frequency of 500 Hz to 20,000 Hz. Students can put their hands up in the air until they can no longer hear the sound, you will need to turn the volume right up!

Students are then told the audible range of humans compared to other animals like dolphins, hedgehogs and bats.

The plenary activity requires students to complete a set of sentences, including outlining what they have learned today, what they already knew and what they would like to know more about.

All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)