NCERT Important Questions Class 8 Science chapter 12 with Answer solution with pdf. Here We Provides Class 1 to 12 all Subjects NCERT Solution with Notes, Question Answer, CBSE and HBSE Important Questions, MCQ and old Question Papers for Students.
- Also Read :- Class 8 Science NCERT Solution
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CBSE and HBSE Solution of Class 8 Science chapter 12 Some Natural Phenomenon important Questions And Answer solution.
Class 8 Science Chapter 12 Important Questions and Answer
Q.1 What is Lightning?
Ans – The spark of charges in clouds due to the collision is called lightning.
Q.2 What is Charged objects?
Ans – The Process of rubbing when an object gets a single charge may be positive or negative. such objects is called charged objects.
Q.3 What is electroscope?
Ans – It is a device that is used to detect the charge of a body. it also finds the kind of charge.
Q.4 Describe some safety points during lightning.
Ans – Here are the following points that we must keep in mind during lightning.
- After hearing the voice of thunder, it is an alert to move at a safe place
- If you are in the forest then take shelter under small trees.
- After hearing last thunder, wait for some time before comes out of safe place.
Q.5 What should do and don’t during a thunderstorm? ( Most Important )
Ans – Here are some points to keep in mind during a thunderstorm.
- Open vehicles are not safe like a bike, tractors.
- carrying an umbrella is not at all a good idea.
- If you are in the forest then take shelter under small trees.
- If you are in open then stay away from trees.
- Do not lie on the ground during a thunderstorm.
- if you are inside your house then remove all electricals.
- Bathing should be avoided during a thunderstorm.
Q.6 What is lightning Conductor? ( Most Important )
Ans – Lightning conductor is a device that is used to protect large buildings from lightning damage. A metal Rod is installed at the top of the building that is connected with the ground.
Q.7 What is Earthquake?
Ans – The earthquake is vibrations for a short period of time. Earthquake is the result of a disturbance in tectonic plates. When these plates move then this vibration comes up as an earthquake.
Q.8 How to measure earthquake?
Ans – Earthquake is measured with the help of the Richter Scale.
Q.9 What are tectonic plates?
Ans – The outermost layer is not in one piece. It is fragmented. Each fragment is called tectonic plate. Such plates are in regular motion but very slow. There are some weak zones in these plates called fault zones. These fault zones resulting in earthquake.
Q.10 Describe some safety point during earthquake.
Ans – Here are the following key points that should be kept in mind during earthquake.
- if you are in your home, then take shelter under the table and stay there till the shaking stops.
- Stay away from tall building and poles because they can fall on you.
- If you are in car or vehicle, then don’t comes out.
- If you are in bed, then don’t get up and protect your head with a pillow.