This lesson discusses the properties of materials and their use in submersible design. Students will compare a variety of materials for their submersible and justify their choices. An investigation into how salt water affects materials allows pupils to make predictions, write conclusions and conduct a fair test.
- Discuss the properties of materials
- Compare and group materials based on their properties
- Give reasons for the uses of materials
- Explain the suitability of materials for certain uses
- Make predictions about how salt-water affects materials
- History of submarines (10 mins)
Students explore historical designs of submarines and discuss the pros and cons of each design and its material construction.
- Choosing materials (10 mins)
Students are guided through
the design process and make suggestions for what each element of the submersible could be constructed from.
- Comparing materials (10 mins)
Students study the properties of a range of materials and decide which would be suitable or unsuitable for a submersible.
- Submersible design (15 mins)
Using prior learning about submersible shapes, students make a rudimentary design and specify which materials parts of the structure would be made from.
- Salt water experiment (15 mins)
Students make predictions about how submersion in salt water will affect different materials.