What happens when you look through a filter?
Nothing
Everything seems to turn that colour
What happens if you look through a number of filters at the same time?
The colours of light you see appear darker
You see a rainbow
If you are looking through a red filter, what do objects that are red anyway look like?
They appear really bright so you can't miss them
It looks like they aren't there
What colour light would a green filter allow you to see?
Green
Yellow and cyan
If you have a white light and you put more than one filter over it, what happens?
It will subtract more colours from the white light.
It won't do anything because white light is too bright.
What are the three primary colours of light?
Red, green and blue
Yellow, magenta and cyan
What are secondary colours?
Different shades of the primary colours.
The colours you get when you mix two of the primary colours together.
Which two primary colours mix together to make yellow?
Green and red
Blue and green
Which two primary colours make cyan when they are mixed together?
Red and blue
Green and blue
Which two primary colours make magenta when they are mixed together?
Why are daffodil petals yellow?
Because the pigments in them absorb blue light, so only red and green are there and they make yellow.
Because that's what colour they are in their DNA
If you look through a red filter, what colour would something that is cyan coloured appear to be?
Red
Black
