Back to: Basic Science Primary 2
Welcome to class.
Many common objects around us have different colours. Examples of colour are white, green, red, yellow, etc. Colour beautifies objects.
When an object doesn’t have any colour, we say it is colourless, e.g water
PRIMARY COLOURS
We have three primary colours and they are: red, yellow and blue.
The primary colours are the main colours. They are the base of all other colours, except white and black. Colours like yellow, orange and red are warm colours and colours like blue, green and purple are cool colours.
Various materials that produces colours
Plants and dyes are materials we use to colour objects. Some leaves, flowers, roots, stems and fruits contain some colours which are taken out as dyes.
We obtain dyes from plants through the processes of boiling, grinding, squeezing and using solvents.
Colours from plants
SECONDARY COLOURS
Mixing of two primary colours give us secondary colours
- Red and yellow together makes orange
- Red and blue makes purple
- Yellow and blue makes green
Green, orange and purple are called secondary colours
USES OF COLOURS
- Colours are sued for beautification of objects.
- Colours in plants can be used to attract insects
- Animals uses their colours to camouflage themselves so that enemies won’t see them
- Sometimes, colours has meaning, like red means danger
- Colours can be used to describe objects e.g a green leaf
- Colours can be used for zebra crossing (painted white on the road) or traffic light.
We have come to the end of today’s class. I f you have any questions ask using the comment box. See you in the next class.