(A good way to do the energy reflection introduction is to shine a flashlight at a tank of water and show the reflection on the ceiling as well as the light at the bottom of the tank.)
(A good way to do the energy reflection introduction; is; to shine a flashlight at a tank of water and show the reflection on the ceiling as well as the light at the bottom of the tank)
A good way to do the energy reflection introduction
is
to shine a flashlight at a tank of water and show the reflection on the ceiling as well as the light at the bottom of the tank