NCERT & DAV OUR WORLD (SST) CLASS-6 BEST BOOK FOR SOCIAL SCIENCE CLASS-6

KRIVAANSH EDUTECH

No.8, 3rd Cross Street,CIT Colony, Mylapore, Chennai, Tamil Nadu-600004 Copyright © Krivaansh Edutech All Rights Reserved. ISBN 978-1-64983-380-8 This book has been published with all efforts taken to make the material error-free after the consent of the author. However, the author and the publisher do not assume and hereby disclaim any liability to any party for any loss, damage, or disruption caused by errors or omissions, whether such errors or omissions result from negligence, accident, or any other cause. While every effort has been made to avoid any mistake or omission, this publication is being sold on the condition and understanding that neither the author nor the publishers or printers would be liable in any manner to any person by reason of any mistake or omission in this publication or for any action taken or omitted to be taken or advice rendered or accepted on the basis of this work. For any defect in printing or binding the publishers will be liable only to replace the defective copy by another copy of this work then available.

This book is dedicated to students of KRIVAANSH Edutech. Who inspire me to make such notes and by these they gave me better results. Special Thanks to my husband (Mr. Satish Budholiya ) & Son (Krishaanu & Vanshaj )

Foreword

vii

Acknowledgements

ix

Foreword

Acknowledgements

CHAPTER ONE

Celestial Bodies Q1. What are celestial bodies? Q2. Why do stars look very small in the sky? Q3. What is saptrishi mandal?

Q4. Name the planets which are gaseous bodies? Q5. Which planet is closest to the Neptune? Q6. Describe formation of solar system?

Q7. State three features which make the earth a unique planet?

Q8. Mention three main characteristics of a satellite?

Q9. Give brief description on the phases of moon?

Q10. Write a short note on the other celestial bodies ( asteroids, meteoroids, and comets) Asteroids:-

Meteoroids :1 Comets:-

Q11. What do you know about “Proxima Centuri”? Fill in the blanks:Galaxy. Venus Mars Universe. light year North 150 million kilometers. orbit Earth 59 days Ceres 365days and 6 hrs Keywords Astronomers Cluster Crescent shape Furnace Gravitational force Self-luminous Spherical

24 hrs.

CHAPTER TWO

Representation of Earth Q1. What are the limitations of a Globe?

Q2. Mention the advantages of map?

Q3. What is thematic map? Give example?

Q4. Name the cardinal points along with intermediate directions? Intermediate directions Q5. How do conventional symbols help in reading maps?

Q6. Why a globe is considered a perfect representation of the earth? Give any three points?

Q7. Distinguish between physical & political map? Political map

Physical map

Q8. What is a scale? Why is it an important component of a map?

Q9. Highlight the significance of a common colour scheme in the maps. Give examples to support your answer.

Q10. Describe the history of map making?

Fill in the blanks:3-D view cartography. Plan compass white Ptolemy Large scale

CHAPTER THREE

Locating places on Earth Q1. Which two basic points on the earth serve as the reference points? Q2. Mention the latitudinal location of the heat zones of earth? Temperate zone:-

Frigid Zone:Q3. Why does the Torrid zone have the maximum temperature?

Q4. What is the significance of Greenwich Mean Time? Q5. Why the standard meridian is selected by a country a multiple of 7.5º?

Q6. State three main characteristics of parallel latitude.

Q7. Why do we use standard time? Explain with an example from India?

Q8. Which heat zone is most suitable for us to live & why?

Q9. Why is the time different between each meridian of longitudes minutes? Explain?