I have already written a more technical optics experiment for the quinto book so here I've chosen an activity that is a bit space orientated. The students are going to make a space box to model how sunlight is reflected off the moon to show why we see the different phases of the moon. The construction is really easy and the viewing of the moon from different angles is very interesting. The difficult part will be getting the students to draw diagrams of what they have seen. In secondary, optics is principally about drawing diagrams of light being reflected - they don't have to get the diagrams perfectly at this stage, but try to get them thinking about where the light is coming from.
This activity is connected to the Matter unit. The matter unit touches on light and reflection by different surfaces. There is a lot of potential for talking about space and planets and there are loads of fantastic videos that could accompany this activity (see NASA or ESA websites).
Link to activity (pdf):
Moonlight Activity
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