1. Warm up
Where did the energy from the laser go when it disappeared in the blue dye yesterday? Think about the law of conservation of energy!
Why does an auditorium not echo when there are many bodies in it?

2. Foldable
On cover draw a diagram of a transverse wave and label all the parts: wavelength, amplitude, crest and trough- show a wave that has a low frequency
Then make a page for refraction, reflection, diffraction, absortion and interference.
Have a definition, a picture and where I could see this occurring in real life for each