Testing everyday materials to design and make shoes

This is a design activity with the final goal making a set of shoes made from a variety of everyday materials.
The students will test the following materials in this investigation.
wood
plastic
sponge
fabric
cardboard
There are 4 tests for the students to conduct.
Investigation 1 - Heating and cooling
Test each material by holding it against different surfaces for 1 minute and recording findings in a table.
Investigation 2 -Friction
Rub the material against different surfaces such as carpet, grass and paving for 1 minute to see if there is an effect on the material.
Investigation 3 - Force
Set a timer for 1 minute while standing on the material. Describe the material after standing on it.
Investigation 4 - Water
Immerse the material in water for 1 minute and recording findings in a table.
To conclude the investigation the students share their findings and decide on the best materials to use to make their set of shoes.