KS3 ~ Year 7~ Gas Exchange

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 B1.2 Module on ‘Structure & Function of Body Systems’

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

The lesson begins with an introduction to the gases that we breathe in and out of our bodies, via the respiratory system.

Students will then be shown a diagram of the main components of the respiratory system, they will have 3 minutes to try to remember the locations of as many structures as possible. The image will then be taken away and they will be give a blank worksheet, without the labels, now they will need to correctly identify as many structures as they can remember. This work is then self-assessed using the mark scheme provided.

The next activity requires students to watch a video, whilst watching they will need to answer a set of questions about the structure and function of the respiratory system. Once complete students can self-assess their work using the mark scheme provided.

The next part of the lesson focuses on composition of gases in inhaled air vs. exhaled air. Students will be given a worksheet which provides some data on the percentage composition of gases in inhaled vs. exhaled air, students will need to answer questions using this information. The mark scheme for this task is included in the PowerPoint for students to assess their work once it is complete.

The plenary task requires students to complete an exit card which will include 3 things learned this lesson, 5 key words and 1 question to test your peers knowledge of what was learned this lesson.

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 :)