martes, 10 de mayo de 2016

PROPERTIES OF MATERIALS

           PROPERTIES OF MATERIALS

Materials have different properties that make them useful for different jobs. Here are some properties that materials have.
Transparent materials do let light through (you can see through them). Opaque materials do not let any light through (you cannot see through them).
Illustration of a window

Waterproof

Waterproof materials do not let water through and do not soak up water.
Illustration of an umbrella

Absorbant

Absorbent materials soak up water and let water pass through them.
Image of a soaken woolly jumper

Strong or weak

Strong materials are very difficult to break. Weak materials break easily.
Illustration of a wooden chair

Flexible

Flexible materials are easy to bend.
Illustratio of a scarf

Rigid

Rigid materials are difficult to bend.
Image of a red bicycle

Hard

Hard materials are difficult to scratch.
Illustration of a diamond


Conductors

Some materials are good conductors of heat. This means heat can travel through them easily.
Some materials are good conductors of electricity. This means electricity can travel through them easily.
Illustration of a radiator

Insulators

Some materials are insulators of heat. This means they do not allow heat to travel through them very easily. Some materials are insulators of electricity. This means that electricity cannot travel through them.
Cooking with a saucepan