KS3 ~ Year 7 ~ Colour

This lesson is designed for the Activate KS3 Science Course, specifically Year 7 P3 ’Light’.

For more lessons designed for KS3 and KS4 please visit my shop at: https://www.tes.com/teaching-resources/shop/SWiftScience.

Students are firstly introduced to the idea of ‘white light’ being split up into the colours of the rainbow. They are then shown a diagram of a ray of white light hitting a prism, which then leads to the refraction of this light - showing the colours of the rainbow from red to violet. Students can sketch a diagram of this into their books, indicating the most refracted and least refracted colours.

Students are then shown a diagram which indicated how primary colours can be mixed together in various combinations to make secondary colours.

The next part of the lesson, students will focus on how we observe different coloured objects. White light will bounce off an object, the colour the object appears depends on the colour of light that it reflects. Various diagrams are shown to students to demonstrate this point, they could sketch a copy of one of the diagrams or draw their own version in their books. They are then given a worksheet to assess their knowledge of what they have learned so far this lesson, extension questions are included for higher ability students. This work can be self-assessed using the mark scheme provided once it is complete.

Students are now shown what happens to the appearance of objects when they are seen in coloured light rather than white light - coloured objects will only reflect the colour it is and will absorb any other colours - which means it appears to be black. Lastly, students are shown how filters are used to subtract light.

Students will then complete a progress check to assess their knowledge of what they have learned this lesson, the mark scheme for this task is included on the PowerPoint. Students can then self-assess their answers using the mark scheme provided.

The plenary requires students to write down 3 facts from the lesson, 3 key words and 1 question to test their peers knowledge of what they have learned.

All resources are included at the end of the presentation. Thanks for looking, if you have any questions please let me know in the comments section and any feedback would be appreciated :)