1.MEASUREMENT
2.FORCE & PRESSURE
3.LIGHT
4.HEAT
5.ELECTRIC CHARGE & ELECTRIC CURRENT
6.SOUND
7.MAGNETISM
8.UNIVERSE & SPACE
9.MATTER AROUND US
10.CHANGES AROUND US*
12.ATOMIC STRUCTURE*
16.MICRO ORGANISM*
17.PLANT KINGDOM*
*will be continued....*
By *THANU SCIENCE*ЁЯЩПЁЯЩП..
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