Stars and the solar system Worksheet-10
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Which two planets have asteroids between them?
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What are asteroids?
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Name the branch of science which deals with the study of the universe.
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What is the shape of the Earth?
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Name the star nearest to the solar system.
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What is solar system?
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What is a galaxy?
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What are meteors?
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What are meteorites?
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Name the comet, which reappears after 76 years.
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What are artificial satellites?
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Give the other name of meteors.
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Does the moon have any atmosphere?
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Why does the sun not appear like other stars?
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Name the reaction taking place in the Sun.
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What is atmosphere?
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Name the galaxy in which our solar system is situated.
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How many galaxies are there in the universe?
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How many stars are present in each galaxy?
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Name the astronauts who landed on the Moon in 1969.
Answer:
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Mars and Jupiter.
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They are very small planets of rock and metal which revolve around Sun mainly between Mars and Jupiter.
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Astronomy.
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The Earth is not a perfect sphere, but is somewhat flattened at the poles and is bulging at the equator.
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Proxima Centuari.
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The Sun and the nine planets along with their natural satellites constitute the solar system.
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Galaxy is a collection of stars consisting of millions of stars.
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Meteors are pieces of rocks floating in space which gets heated up on entering into Earth's atmosphere.
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A part of meteor which fails to burn in Earth's atmosphere and reaches the surface of Earth is called meteorite.
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Halley's comet.
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The man-made objects revolving round the Earth are called artificial satellites.
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Shooting stars.
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No
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The Sun appears bigger and hotter as compared to other stars because it is very close to the Earth.
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Nuclear fusion.
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The Earth is surrounded by an envelope of air known as atmosphere.
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Milky way.
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Hundred billion galaxies.
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Each galaxy consists of 100 billion stars.
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Neil Armstrong and Edwin Aldrin.