9.LIGHT

BY: IRAIDA GARCIA MUÑOZ

2.LIGHT AND SHADOWS When light cannot travel through an object ,a

shadows is formed on the opposite side to the source of light.

COLOURS: The light we get from the sun is called white light . White light is a mixture of seven colours:

red,orange,yellow,green,blue,indigo and violet.

TRANSPARENT,TRANSLUCENT AND OPAQUE OBJECTS

We divide objects into three groups depending on how much light can pass through .

Transparent objects , like clear glass bottles , allow light to pass through .

Translucent objects, like curtains, allow some light to pass through.

Opaque objects, for example wood and cardboard , do not allow light to pass through .

LUMINOUS AND NON-LUMINOUS BODIES

Some objects are sources of light.

Natural luminous bodies, like the Sun, produce light.

Artificial luminous bodies, like candles and matches , are man-made.

Non luminous bodies produce no light. Some of them can reflect light, like mirrors.