Some Natural Phenomena Class 8 Worksheet with Solved in Pdf
Some Natural Phenomena Class 8 Worksheet: In this page we have included Some Natural Phenomena Chapter from Grade 8 Worksheet with solution.
Worksheet for chapter 15: – Some Natural Phenomena
The following questions are important for your exams for 1 mark 2 mark or 5 marks. First solve the questions on your own and then saw the solution for understanding it better.
Practice worksheet for class 8
Q.A.) Select the correct option.
1.) When a plastic refill is rubbed with polythene, it requires
a. High electric charge
b. Small electric charge
c. Doesn’t require any charge
d. None of these
Answer: – b. Small electric charge
2.) Earthing is provided in building to protect us from
- Rain
- Sun
- Air
- Electric shocks
Answer:- d.) Electric shocks
Q.B.) State whether the following statements are true or false.
1.) Earthquakes are caused by movement of earth plates.
Answer:- True
2.) Lighting strike gives light.
Answer:- False
3.) Unlike charges repel each other and like charges attract.
Answer:- False
4.) Objects can be changed by rubbing other objects.
Answer:- True
Q.C.) Define the following.
1.) Define seismograph.
Answer:- The waves are recorded by an instrument called seismograph.
2.) Define Richter scale.
Answer:- The power of an earthquake is expressed in terms of magnitude on a scale called the Richter scale.
3.) Define earthing.
Answer:- The process of transferring of charge from a charged object to the earth is called earthing.
4.) Define electroscope.
Answer:- A device used to test whether the object is carrying charge or not is called electroscope.
Q.D. Answer in brief.
Q.1.) Where was the earthquake occurred?
Answer:- a. A major earthquake was occurred in India on 8 October 2005 in Uri and Tangdhar towns of North Kashmir.
b. A major earthquake was occurred in 26 January 2001 in Bhuj district of Gujarat.
Q.2.) What is an earthquake?
Answer:- a. An earthquake is a sudden shaking or trembling of the earth which last for a very short time.
- It is caused by disturbance deep inside the earth crust.
- Earthquake occurs over all the time, all over the world.
- Major earthquake are less frequent.
- Earthquake can cause landslide, tsunamis and floods.
Q.3.) What are lightning conductors?
Answer:-
- Lightning conductors is a device to protect building from effect of lightning.
- A metallic rod taller than the building is inserted in the wall of building during construction.
- One end of the rod is kept in the air and other end is buried deep in the ground.
- The rod provides easy route for the transfer of electric charge to the ground.
- The metal columns used during construction, electric wires and water pipes in the building also protect us to an extent.
Some Natural Phenomena Class 8 Worksheet