“Practice is better than only learning from a book”.

  Of course.  Instead of learning directly from a book, learning by comparing it with reality can be more effective and memorable for learners.  Especially in teaching science, you can learn through practical experiments.  Teaching with these practical experiments is done by the secondary students in TIS and they learn systematically.  Therefore, we are sharing the practical experiment made by secondary school students, “The weight, density, and construction of a simple light bulb circuit that changes when an object is placed in a different environment.”

 How to construct a simple circuit?

 – We need power supply, wire, bulbs and switch.

 – First we need to join the wire with the power supply and the wire needed to join with the bulbs and also with the switch.

 – When we press the switch, the current cannot flow because it was stopped by the non-conductor.

 – So when we pull up the switch, the current will flow perfectly and the bulbs will light up.

 – If some of the bulbs break, the other bulb will go on.