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Introduction: Universe | GK Olympiad for Class 6 PDF Download

Universe

  • Universe includes living things, planets, stars, galaxies, dust clouds, light, and even time.
  • It contains billions of galaxies, each containing millions or billions of stars.
  • The space between the stars and galaxies is largely empty.
  • Space is also filled with radiation (for example, light and heat), magnetic fields and high energy particles (for example, cosmic rays).
  • The age of the universe is 13.82 billion years old.
  • The visible universe is at least 93 billion light years away.
  • Since the Big Bang, the universe has been expanding outward at very high speed.

Galaxy

  • Galaxy is a collection of millions or billions of stars and planets that are held together by gravitational pull.
  • There are billions of galaxies in the universe.
  • The Sun is one such star among 100 billion stars in our galaxy- The Milky Way or Akash Ganga.
  • Earth and all other planets also lie in the Milky Way galaxy.
  • Spiral in shape, the Milky Way galaxy, is called so as it looks like a river of milky light flowing from one corner of the sky to another.

Sun

  • The Sun, about 5 billion years old, is our nearest star, made-up of extremely hot gases- Hydrogen, Helium and others.
  • Temperature of Sun’s surface is 9941°F.
  • Sun makes up 99.86% of the mass in the entire solar system and has immense gravitational pull which keeps the planets fixed in their orbit, revolving around it.

Solar System

  • The Solar System is made up of the Sun and all of the smaller objects that move around it.
  • Apart from the Sun, the largest members of the Solar System are the eight major planets. Nearest to the Sun are four fairly small, rocky planets - Mercury, Venus, Earth and Mars.
  • Beyond Mars is the asteroid belt - a region populated by millions of rocky objects.
  • These planets are much bigger than Earth, but very lightweight for their size and are mostly made of hydrogen and helium.
    Introduction: Universe | GK Olympiad for Class 6

Planets Facts
Introduction: Universe | GK Olympiad for Class 6

The document Introduction: Universe | GK Olympiad for Class 6 is a part of the Class 6 Course GK Olympiad for Class 6.
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FAQs on Introduction: Universe - GK Olympiad for Class 6

1. What is Universe Class 6?
Ans. Universe Class 6 refers to a specific classification or category within the educational system. It is typically used to denote the sixth grade level or year of schooling.
2. What subjects are typically taught in Universe Class 6?
Ans. In Universe Class 6, students are usually taught a range of subjects that aim to provide a well-rounded education. These subjects may include mathematics, science, language arts, social studies, and physical education, among others.
3. What is the importance of Universe Class 6 exams?
Ans. Universe Class 6 exams play a crucial role in assessing the knowledge and understanding of students at this grade level. They help identify areas of strength and weakness, guide instructional planning, and provide feedback to students, parents, and educators on the progress made in various subjects.
4. How are Universe Class 6 exams typically structured?
Ans. The structure of Universe Class 6 exams may vary depending on the educational system or curriculum in place. However, they commonly include a combination of multiple-choice questions, short-answer questions, and possibly longer essay-style questions to assess students' knowledge and skills across different subjects.
5. How can students effectively prepare for Universe Class 6 exams?
Ans. To prepare for Universe Class 6 exams, students can adopt various strategies. These may include reviewing class notes, textbooks, and study guides, practicing past exam papers, seeking clarification from teachers on any challenging concepts, creating a study schedule, and engaging in regular revision and practice to strengthen their understanding and retention of the subject matter.
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