Article: Even something as simple as shutting off the lights when you leave a room can help to save energy. Turn off the lights that are not being used in classrooms and other areas, such as empty bathrooms and unoccupied multi-purpose rooms.   Try organizing a student “light patrol” to check empty classrooms, labs, and other spaces to make sure the lights are off when they’re not in use. If you are a teacher, remind your students by saying, “Did you know that 90% of the energy that lightbulbs use is expended as heat? If we turn off lights when we don’t need them, we can save energy and keep rooms cooler.” Try doing this at a time when the students will remember it, like just before leaving the classroom or as you are turning off some lights. It may not always be necessary for you to have the lights on in your classroom. There may be times of the day when the sun is especially bright and sufficient for what you are doing in your classroom. Other times of the day, you might only need half of the lights.   If you are a student, ask your teacher if it is okay to work with fewer lights on. For example, you could approach your teacher and say something like, “The sun is so bright today. Would it be okay if we opened the blinds and turned off some or all of the lights to save energy?” If you are a teacher, try asking your students, “Can everyone see okay?” Replacing all of the incandescent bulbs in your school with compact fluorescent lights (CFLs) can translate to big energy savings for your school. If you’re a student, talk to your teacher or your school principal about switching to CFLs.  CFLs consume a little more energy than incandescent bulbs when you first turn them on, but after the bulb is on, they use 70% less energy than an incandescent bulb.  Make sure that you do not switch CFL bulbs off and on too much. It is best to leave them on for 15 minutes or longer to save more energy.
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Turn off the lights when rooms are not in use. Use natural light when the sun is bright. Talk to your school administrators about switching to fluorescent bulbs.