Thursday 15 March 2018

Science: Light Filters!


This week in Science lessons, Year 6 were investigating the effects of light filters.

Last week we learned that ‘white’ light is actually made up of all the colours of the spectrum, and that refracting the light through a glass or plastic prism causes the different colours of the spectrum to become visible. This is because the different colours travel at different speeds and refract at different rates, meaning they actually refract at slightly different angles.





We investigated what kinds of effects looking at objects through coloured filters had; we found that the filters made everything look different…




For example, looking at a yellow object through a red filter made it appear orange, and looking at the same yellow object through a blue filter made it appear yellow! We then remembered about colour theory, and how to mix the 3 primary colours (red, yellow and blue) to make the secondary colours.

Do you know how to make the following colours by mixing the 3 primary colours?

- Green?

- Orange?

- Purple?