Class 8 Science Some Natural Phenomena Worksheet
Section A: Fill in the Blanks
- The process of transferring charge from a charged object to the earth is called ________.
- ________ charges repel, while unlike charges attract.
- An instrument used to detect whether a body is charged is called an ________.
- The ________ scale is used to measure the magnitude of earthquakes.
- A ________ is a sudden shaking or trembling of the earth.
- A ________ conductor protects buildings from lightning.
- The outermost layer of the earth is called the ________.
- The destructive energy of an earthquake is measured on the ________ scale.
- The boundaries of the earth’s plates are called ________ zones.
- The instrument that records seismic waves is called a ________.
Section B: Multiple Choice Questions
- Which two destructive natural phenomena are discussed in the chapter?
(a) Volcanoes and hurricanes
(b) Lightning and earthquakes
(c) Floods and droughts
(d) Tsunamis and wildfires
- What causes lightning?
(a) The wrath of the gods
(b) Accumulation of charges in clouds
(c) Friction between air masses
(d) Solar flares
- Who demonstrated that lightning and sparks from clothes are similar phenomena?
(a) Isaac Newton
(b) Albert Einstein
(c) Benjamin Franklin
(d) Galileo Galilei
- What happens when two balloons charged with the same type of charge are brought close together?
(a) They attract each other.
(b) They repel each other.
(c) Nothing happens.
(d) They explode.
- What happens when a charged balloon is brought near a charged refill?
(a) They repel each other.
(b) They attract each other.
(c) Nothing happens.
(d) It depends on the materials.
