CONTENTS 



The two opening 

 chapters orient the 

 pupil in the universe. 

 Figuratively speaking, 

 the author takes him 

 up on a high mountain, 

 lets him survey the field, 

 and helps him get his 

 bearings in the world. 



CHAPTER I. THE OPEN SKY 



The Sun Stars and Planets Constellations 



Our Solar Family The Moon Eclipses 



Comets . . . . . . 1 



Interesting facts about the heavens. The vast- 

 ness of solar distances. 



CHAPTER II. OUR OWN WORLD 



The Size and Shape of the Earth Movements 

 of the Earth Causes of Seasons Standard 

 Time International Date Line Daylight 

 Saving Terrestrial Magnetism . . 20 



Peculiarities of the earth. Ancient and medieval 

 ideas. 



Following the chap- 

 ters on the universe and 

 the world, this chapter 

 on the properties and 

 make-up of matter an- 

 swers the question, 

 " What is it all made 

 S/f" 



CHAPTER III. 

 OF MATTER 



PROPERTIES AND MAKE-UP 



Forms of Matter Properties of Matter : Ex- 

 tension, Inertia, Gravitation Composition 

 of Matter Physical and Chemical Changes 

 Acids Bases Salts Neutralization . 42 



The composition of water. Iron rust. Uses of 

 familiar acids, bases, and salts in the household. 

 Manufacture of soap. 



