Comparing 2 Sources of Light

On Thursday and Friday the students conducted a study comparing a flashlight and glowstick.  First we discussed the similarities and differences of the two.  We also discussed the uses of glowsticks and flashlights and the children decided that they were a good thing to have in case the electricity goes out.  They also suggested that glowsticks can be fun to have a night time parades, fireworks and camping.  However, they also reported that you have to be very careful because they can break open.  The children then made predictions regarding which source of light would last the longest.  Then we made a chart to monitor the lights.  The flashlight lasted the least amount of time, about 27 hours.  The glowstick was still glowing slightly at the end of the day, about 29 hours.  In the new year we are looking forward to doing more science investigations using glowsticks!