Social Studies_Class 6_L 1_Exercise_ABCDE

A-Tick the correct option:

1)      A Constellation is a group of __stars______arranged in a particular shape.

2)      The pole star always shines in the ___north_______.

3)      All the planets move around the Sun in a ___elliptical path__ (or) __elongated path_.

4)      Which planet is made up of gases and liquid? _____Saturn___.

5)      Which is the largest planet in the Solar system? ___Jupiter___.

6)      Which is the farthest planet? ____Neptune___.

7)      Which planet is known as the Evening Star? ____Venus___.

8)      Tailed star is also known as a ____Comet____.

B-Fill in the blanks:

1)      Our Earth is a part of the Galaxy called _____Milky Way____.

2)      The Earth moves around the Sun from _____West___ to ___East___.

3)      The planet with rings is ____Saturn___.

4)      Meteors are commonly known as ____shooting___ Stars.

5)      __Stars__ are self luminous bodies.

6)      Moon is unlike the earth because it has no ___water___ and __atmosphere__.

7)      The __Halley__ Comet appears after every 76 years.

C- State True or False:

1)      A group of stars is called a constellation.  T

2)      The Milky Way is the only Galaxy in the Universe. F

3)      The Solar system comprises of the sun, its eight planets and their satellites. T

4)      Satellites are small celestial bodies revolving around a planet. T

5)      Moon is a self luminous body. F

6)      Asteroids are considered to be pieces of a planet. T

7)      A comet is a small body which glows when it reaches near the Sun. T     

D- Match the following: Answer -

1)      Venus -----The hottest planet

2)      Mars ------The red planet

3)      Earth ------Watery planet

4)      Saturn ----Rings around it

5)      Pluto -----A dwarf planet

E- Answer the following questions in one word or phrase:

1)      Who is known as the father of  Indian astronomy?---- Aryabhatta (born in 476 AD) 

2)      What resulted after the big bang? Universe came into existence

3)      Name some constellations. ---- Saptarishi Mandal [Ursa Major (Great Bear)], Orion, Leo, Gemini.

4)      What is the fixed path of all planets called? ----Orbit

5)      What is an object that revolves around a planet in its orbit called? ---Satellites

6)      What satellite is placed in orbit with the help of rocket? ---- artificial satellite

7)      Which tiny bodies revolve around the Sun between the orbits of Mars & Jupiter? ---Asteroids

8)      Which is the only natural satellite of the Earth? ----Moon