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  • Class 8 Science Study Material

An Educational platform for Preparation and Practice Class 8. Kidsfront provide unique pattern of learning Science with free online comprehensive study material in the form of QUESTION & ANSWER for each Chapter of Science for Class 8. This study material help Class 8, Science students in learning every aspect of Stars And The Solar System . Students can understand Stars And The Solar System concept easily and consolidate their learning by doing Online Practice Tests on Science,Stars And The Solar System chapter repeatedly till they excel in Class 8, Stars And The Solar System . Free ONLINE PRACTICE TESTS on Class 8, Stars And The Solar System comprise of Hundreds of Questions on Stars And The Solar System , prepared by the highly professionals team. Every repeat test of Stars And The Solar System will have new set of questions and help students to prepare themselves for exams by doing unlimited Online Test exercise on Stars And The Solar System . Attempt ONLINE TEST on Class 8,Science,Stars And The Solar System in Academics section after completing this Stars And The Solar System Question Answer Exercise.


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Stars And The Solar System
A celestial body with very less life time is a

a) Meteor.
b) Satellite.
c) Star.
d) Comet.



Answer
Solution
Correct Answer Is : Meteor.
Solution Is : Meteors are celestial bodies made up of rocky materials which enter the earth`s atmosphere. When they travel through the air, they become hot and burn because of friction. Due to this, these rocky pieces melt and vaporise very fast, without lasting for long.
Pole star usually refers to

a) Great bear.
b) Orion.
c) Polaris.
d) Ursa minor



Answer
Solution
Correct Answer Is : Polaris.
Solution Is : Polaris is the current northern pole star, also known as the North star. Polaris or the North star has been used for navigation, both to find the north direction and to determine latitude.It always appear in northern hemisphere.?
Distance between the stars is measured in

a) Kilometers.
b) Meters.
c) Light years.
d) Chandra Shekhar Limit.



Answer
Solution
Correct Answer Is : Light years.
Solution Is : Most of the stars are so far away that using smaller units for their distance measurement will lead to large figures so, we use light year as it is the singular longest distance measurement unit at present.
The planet that is also known as a `morning star` is

a) Venus.
b) Mercury.
c) Pluto.
d) Neptune.



Answer
Solution
Correct Answer Is : Venus.
Solution Is : Venus appears in the eastern sky before sunrise. Therefore, it is also called as `morning star`.
Venus is a brightest planet because of the

a) Ozone layer around it.
b) Cloudy atmosphere of nitrogen.
c) Cloudy atmosphere of carbon dioxide.
d) Layer of jugnus around it.



Answer
Solution
Correct Answer Is : Cloudy atmosphere of carbon dioxide.
Solution Is : Venus is a brightest planet because of the cloudy atmosphere of carbon dioxide. This cover reflects more than 3/4th of the sunlight falling on its surface.
The interesting feature

a) It
b) Its day and night temperatures are very adverse.
c) It has a thick atmosphere of carbon dioxide.
d) It rotates from



Answer
Solution
Correct Answer Is : It rotates from
Solution Is : Rotation of Venus is unusual as it rotates from east to west while all other planets rotates from west to east.Long time back a large asteroid collided with it and changed its direction of rotation by throwing its north pole towards the south and vice-versa.
Change of seasons on the earth takes place due to the reason that

a) The axis of rotation of the earth is tilted to the orbital plane.
b) The axis of rotation of the earth is perpendicular to the plane of its orbit.
c) The temperature of the earth keeps on changing.
d) The sun sends unequal amount of light on the earth.



Answer
Solution
Correct Answer Is : The axis of rotation of the earth is tilted to the orbital plane.
Solution Is : Due to the tilt in the axis of rotation, the position of the northern and southern hemisphere of the earth towards the sun, keeps on changing throughout the year. When the northern hemisphere is tilted towards the sun, we experience summer, whereas the people in the southern hemisphere experience winter. Similarly, autumn and spring occurs when the earth is between these two extreme positions in its orbit.
Venus is known as the

a) Red star.
b) Blue planet.
c) Morning or evening star.
d) Night star.



Answer
Solution
Correct Answer Is : Morning or evening star.
Solution Is : Venus appears in the eastern sky just before the sunrise and?it also appears in the western sky just after the sunset. So, although, it is not a star it is known as the evening or morning star.
In clear nights, when moon is not there we see bright streaks of light known as

a) Meteors.
b) Asteroids.
c) Comets.
d) Meteorites.



Answer
Solution
Correct Answer Is : Meteors.
Solution Is : Meteor is a small object that occasionally enters the earth`s atmosphere with high speed. It gets heats up due to the friction of the atmosphere and so, it glows and evaporates quickly which we see as a streak of bright light.
Celestial bodies that can reach the surface of the Earth are

a) Meteors.
b) Meteorites.
c) Comets.
d) Asteroids.



Answer
Solution
Correct Answer Is : Meteorites.
Solution Is : Meteors are celestial bodies made up of rocky materials, which become hot on entering the earth`s atmosphere and burn because of atmospheric friction. The unburned piece of a meteor, which reaches the surface of the earth is called a meteorite.
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