Which are the benefits of the development of synthetic materials?
They are cheaper, accesible, easier to obtain. Most medicines, for example, are synthetic.
Made by changing a natural material into another
Synthetic material
Temperature at which liquid changes into a gas
Boiling point
Ability of a material to allow electricity to flow through it
Electrical conductivity
Ability of a material to transfer heat
Thermal conductivity
Energy made by the flow of an electric current
Electrical energy
Which materials have low or none electrical conductivity?
Wood, plastic, rubber, ceramic
The amount of mass in a certain volume of matter
Density
Ability of a type of matter to burn easily
Flammability
Which is the relationship between natural and synthetic materials?
They are both made from natural resources
Can be observed and measured without changing the kind of matter
Physical property
Which materials have high electrical conductivity?
Copper, silver, gold, aluminum
Example of semiconductor (electrical conductivity)
Computer circuits
Very small particle, basic unit that makes up all matter
Atom
Which materials have low thermal conductivity?
Ceramics, water, concrete, fabric, rubber, wood
Temperature at which solid changes to liquid
Melting point
Ability to be stretched or hammered into different shapes
Ductility
Can be observed and measured only by changing the matter into a different kind of matter
Chemical property
Special quality or characteristic of something
Property
Matter that always contains the same type of atoms arranged in the same way
Pure substance
Ability to bend
Flexibility
Ability of a material to dissolve into another
Solubility
Which materials have high thermal conductivity?
Diamond, copper and silver
Medium level of electrical conductivity
Semiconductor