Measuring heat and light

The 5th class was measuring the temperature and light. The reasults looked good. They were little better than in the spring. We have rememberd to put lights off. Water has been rememberd to be use less. And we haven' t left the water running. Classes 1-4 has always kept the lights on. We are trying to get them into the project with us. Always if we notice the lights on for no reason, we put them off. We always tell them not keep them on, if they don' t really need them. If ther is a termostate somewhere too high temperature, we put it to a lower temperature.