Understanding the Moon and the Night Sky
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Questions and Answers

What is the North Star also called?

  • The Morning Star
  • The Seven Sages
  • The Big Bear
  • The Pole Star (correct)

What is the word 'planet' derived from?

  • A Greek word for 'wanderers' (correct)
  • A Roman word for 'celestial body'
  • A Greek word for 'star'
  • A Latin word for 'earth'

What is the function of the North Star?

  • To indicate the south direction
  • To indicate the north direction (correct)
  • To show the pattern of constellations
  • To measure the distance of celestial bodies

What is the purpose of the imaginary line drawn joining the pointer stars?

<p>To locate the position of the Pole Star (A)</p> Signup and view all the answers

What is the Saptarishi?

<p>A group of seven stars (C)</p> Signup and view all the answers

What is the Earth?

<p>A planet that gets heat and light from the Sun (D)</p> Signup and view all the answers

What is the function of the stars in the night sky?

<p>To determine directions during the night (B)</p> Signup and view all the answers

What is the moon?

<p>A satellite that moves round the Earth (A)</p> Signup and view all the answers

What is the reason why we can't see the moon and other bright objects during the day?

<p>The bright light of the sun prevents us from seeing them. (A)</p> Signup and view all the answers

What is the term for the night when the full moon is visible?

<p>Poornima (B)</p> Signup and view all the answers

What are the celestial bodies that are very big and hot, made up of gases, and emit their own heat and light?

<p>Stars (B)</p> Signup and view all the answers

Why do the stars appear as tiny twinkling objects in the night sky?

<p>Because they are very far away from us (A)</p> Signup and view all the answers

What is the purpose of the experiment with the torch and the paper?

<p>To simulate the appearance of stars in the night sky (D)</p> Signup and view all the answers

What happens to the dots of light on the wall when the lights in the room are switched on?

<p>They become almost invisible (C)</p> Signup and view all the answers

What is the term for the night when the moon is not visible at all?

<p>Amavasya (A)</p> Signup and view all the answers

What is the common characteristic of the sun and the stars?

<p>They are both very big and hot, made up of gases, and emit their own heat and light (C)</p> Signup and view all the answers

Study Notes

Celestial Bodies

  • Celestial bodies are objects in the night sky, including the moon, stars, and other shining objects.
  • The moon appears at different times, in different shapes and positions, and can only be seen in its full form once a month (Full Moon or Poornima).
  • A fortnight later, the moon is not visible at all (New Moon or Amavasya).
  • The sun's bright light makes it difficult to see celestial bodies during the day.

Stars and the Sun

  • Celestial bodies that are very big and hot, made up of gases, are called stars.
  • Stars emit their own heat and light in large amounts.
  • The sun is a star, and countless twinkling stars in the night sky are similar to the sun.
  • Stars appear tiny because they are very far from us.

Constellations and the North Star

  • Constellations are patterns formed by different groups of stars.
  • The Saptarishi (Big Bear) is one such constellation, with seven stars that form part of the Ursa Major constellation.
  • The North Star (Pole Star) indicates the north direction and remains in the same position in the sky.
  • The North Star can be located using the Saptarishi constellation.

Planets and Satellites

  • Celestial bodies that do not have their own heat and light, but are lit by the light of stars, are called planets.
  • The word "planet" comes from the Greek word "Planetai," meaning "wanderers."
  • The Earth is a planet, getting its heat and light from the sun.
  • Satellites, like the moon, orbit around planets and are lit by the light of stars.

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Description

This quiz explores the visibility of the moon and other celestial objects in the night sky, including the full moon, new moon, and shapes of the moon.

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