Properties of materials
Chemical properties. We can see these properties when the chemical
composition of a material changes because it interacts with other substances.
Chemical properties are any of the properties of matter that may only be observed and measured by performing a chemical change
or chemical reaction.
o Physical properties:
• Electrical properties:
Electrical conductivity. Some materials conduct electricity. (Metals)
Electrical insulation. Some materials don’t conduct electricity. (Wood)
• Thermal properties:
Thermal conductivity. Some materials conduct heat. (Metals)
Thermal insulation. Some materials don’t conduct heat. (Cork, wool,…)
• Optical properties:
Transparent. You can see through a transparent material. (Glass)
• Acoustic properties:
Acoustic conductivity. The capacity of materials to transmit sound. (Any metal)
Acoustic insulators. Some materials don’t conduct sound well. (Cork)
• Magnetic properties:
Magnetism. Some metals attract other metallic materials.