For the past few days, there has been some rain here in Chennai. This has paved the way for mosquitoes and small insects to get inside the residences.
Some times, even effective mosquito repellents seem to be ineffective. Hence many people use instance sticks to repel mosquitoes and small insects. I had to use an insence stick as well as shown in the following photo:
As any brilliant science teacher would know, such photoes are of immense use in teaching middle school science concepts. Above photo (or a short video) of the burning insence stick can be used to teach an important school science concept: Hot air rises up. It can also be used to teach concepts such as kinetic theory of matter.
I wish that our teachers use such photoes and videos in their classrooms, if they cannot do live demos for any reason.
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