Solutions of Natural Phenomena from SCIENCE For Class 8
B K Gowel Science Solutions from Chapter 15 - Natural Phenomena
BK GOWEL and SANGEETA's SCIENCE For Class 8 detailed solutions to all the exercises of Natural Phenomena for 8th CBSE are provided here. The topics covered are such as Transfer Of Charges, Attraction And Repulsion and, Two Kinds Of Electric Charges. The points to remember in the BK GOWEL and SANGEETA's Book Solutions is ideal for quick revision.
Practice Other Topics from Natural Phenomena
The topic introduces us to natural phenomena like rain, thunder and lightning. It discusses how people were scared of the thunderstorm and regarded rain as a blessing. People interpreted rain, thunderbolt, and lightning as per their wisdom.
The topic talks about the history of sparks. The sparks were discovered and named Amber, which means Elektron in Greek. Later on, the term electric was coined by Dr William Gilbert from the Greek Elektron.
The topic informs us about static electricity with a playful example of a ruler and paper bits. Static electricity is the one that is at rest, and there is no movement. The study of static electricity is known as electrostatics.
The topic explores charged and uncharged bodies and the reasons behind them. Metals do not hold a charge as they are good conductors of electricity. The examples are given to show that some materials get charged when rubbed.
The topic helps us find out the two kinds of electric charges. It mentions that a charged body attracts another uncharged one. It also includes an experiment using few materials to show a positive charge and a negative charge.
This topic explains the theory of attraction and repulsion. The theory suggests that two repelling bodies must have a charge in both of them. In contrast, two bodies that attract each other might not be both charged.
The topic describes the transfer of charges and different kinds of transfer that takes place. It explains the term, earthing. An activity is given to show the working of an electroscope.
This topic talks about the conduction of electricity through air and water. It also describes the causes of lightning. It further covers lightning and lightning conductors, safety measures during a thunderstorm, and the usefulness of lightning.
The topic deals with earthquakes, their causes, their classification, lessening their effects, and some indicators that alert us of an approaching earthquake. Earthquakes can be classified into slight, moderate, great, and very great.
