Pathik — CBSE Class 6–12 Notes, Worksheets & MCQ Quizzes

  Chapter 12: Beyond Earth Worksheet  SECTION A:  I. Multiple Choice Questions  Which is the brightest star in the night sky? (i) Pole Star (ii) Sirius (iii) Alpha Centauri (iv) Sun The star that appears almost stationary in the northern night sky is called: (i) Sirius (ii) Betelgeuse (iii) Pole Star (Dhruva Tara) (iv) Rigel A group of stars forming a recognizable shape or pattern in the sky is called a: (i) Galaxy (ii) Solar System (iii) Constellation (iv) Asteroid Belt The constellation Orion is also known by what traditional name in India? (i) Saptarishi (ii) Vyadha (iii) Dhruva (iv) Akash Ganga Which celestial body is known as the "Evening Star" or "Morning Star"? (i) Mars (ii) Jupiter (iii) Venus (iv) Mercury The main source of energy for the Earth and the entire Solar System is: (i) The Moon (ii) The Sun (iii) Pole Star (iv) Jupiter Which of the following is not a planet in our Solar System? (i) Neptune (ii) Pluto (iii) Uranus (iv) Saturn Small rocky bodies ...

  Chapter 12: Beyond Earth 1. Stars and Constellations Stars are huge, very hot objects that produce their own light . Some stars appear bright while others appear dim. A constellation is a defined region of the sky containing a group of stars that appears to form a recognizable pattern. In ancient times, constellations helped travellers and sailors find directions . There are 88 officially recognised constellations , as defined by the International Astronomical Union (IAU). Important constellations mentioned in the chapter: Orion – often imagined as a hunter. Ursa Major – contains the Big Dipper. Ursa Minor – contains the Little Dipper. Canis Major – contains Sirius. Taurus – contains the Pleiades. 2. Pole Star The Pole Star (Polaris/Dhruva Tara) appears nearly stationary in the North direction . It helps us locate the North direction in the Northern Hemisphere . The Big Dipper belongs to Ursa Major . The Little Dipper belongs to Ursa Minor .  Finding the Pole Star ...