Understanding how sound travels through materials lesson

Year 7 or 8 lesson on understanding how sound travels through materials.

LOs:
To recognise how the speed of sound changes in different substances.
To use the particle model to explain why sound cannot travel through a vacuum.
To use the particle model to explain why there are differences when sound travels through solids, liquids and gases.

Activities:
1. Do Now: Keyword match-up with definition
2. Student Activity: Fill in the gap sheet on how sound travels through different materials
3. Student Activity: Drawing a bar chart of the speed of sound through different materials
4. Mini-plenary: Drawing conclusions from the bar chart
5. Student Activity: Discussing the film poster tagline "In space no one can hear you scream" and adding scientific information
6. Independent Task: Drawing particle diagrams for solid, liquid and gas and using them to explain why sounds travels fastest through solids and slowest through gases
7. Plenary: 3,2,1

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