How can you look back in time?
This PowerPoint can be used to guide students through how to work out speed and what is meant by a light year in order for them to answer the above question at the end of the lesson. Requires some difficult math.


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  • light speed.ppt

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Created: Jun 9, 2010

Updated: Aug 19, 2015

ppt, 38 KB

light speed

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This resource is designed for US teachers. View UK version .

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Tes Classic Free Licence

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