Name the unit which is used to express distances between the various celestial bodies (like stars and planets).
In which season of the year are the following constellations visible in the night sky?
(b) Leo Major
Which is the main source of heat and light energy for all the members of the Solar System (like planet and satellites, etc.)?
Name the member of the Solar System which appears in the sky like a bright ball of light with a long glowing tail.
Name two constellations which are visible in the sky:
(a) In the summer season.
(b) In the winter season.
State whether the following statements are true or false:
(a) Constellation Orion can be seen only with a telescope.
(b) Pole Star is a member of the Solar System.
(c) Mercury is the smallest planet of the Solar System.
(d) Uranus is the farthest planet in the Solar System.
(e) There are nine planets in the Solar System.
(f) Comets are members of the Solar System.
(g) INSAT is an artificial satellite.
Fill in the following blanks with suitable words:
(a) The stars appear to ________ in the sky.
(b) The Sun is a ________ whereas Orion is a ________
(c) The group of stars that appears to form a recognizable pattern in the sky is known as ________
(d) The brightest star in the night sky is ________
(e) Ursa Major constellation appears to revolve around the ________ star in the night sky.
(f) Orion constellation can be used to locate the position of ________ star whereas Ursa Major constellation can be used to locate the ________ star in the night sky.
(g) The planet which is farthest from the Sun is ________
(h) The planet which appears reddish is ________
(i) The small heavenly bodies revolving around the Sun between the orbits of Mars and Jupiter are called ________
(j) Asteroids are found between the orbits of ________ and ________
(k) Shooting stars are not ________
(l) A celestial body that revolves around a planet is known as ________
(m) A meteoroid becomes a ________ on entering Earth's atmosphere.
(n) The long-distance transmission of television programmes has been made possible with the help of ________ satellites.
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