Teacher's JLeaflet. 'j'j'] 



(12). .Why is it so much hotter and colder on the moon than upon 

 the earth? 



(13). If you could shout on the moon, how would it sound? If one 

 hundred cannons should be fired at once on the moon, how would it 

 sound ? 



(14). Is there any rain or snow on the moon? 



(15). Are there any clouds there? 



(16). If there are no air nor water on the moon, would the intense 

 heat and the powerful cold affect the soils or rocks, as freezing and 

 thawing afifect our rocks? 



(17). Professor Newton estimated that the earth meets seven million 

 meteorites (shooting stars) every twenty-four hours. Why do we not 

 see more of these and why do not more of them hit the earth? 



(18). What happens when a meteorite is in the path of the moon? 



(19). The moon is about one-sixth as heavy as the earth and this 

 makes the force of gravity six times less. If a man can carry seventy- 

 five pounds on his back here, how much could he carry on the moon ? 

 If a boy can throw a ball one hundred yards here, how many yards could 

 he throw on the moon? If a boy can kick a football one hundred and 

 thirty-five feet in the air here, how far could he kick it on the moon? 



Facts for the Teacher. — As neither animals nor plants can live without air and 

 water we conclude that there is no life, as we understand it, upon the moon. The 

 sky whether seen at midday or midnight from the moon is always black, as there 

 is no atmosphere to sift out the rays of light and thus make the skies blue, as 

 happens in our skies. There could be no glow at sunset or sunrise because there 

 is no air to act as a prism in separating the rays of light, and there are no clouds 

 there to reflect and refract the light. The sun from the moon is simply an intensely 

 "luminous ball with no halo of rays ; seeing the sun through our atmosphere gives it 

 this appearance of being surrounded by a halo. To look at the sun from the moon 

 unveiled would make us instantly blind, and from the moon the stars are simply 

 points of light and do not twinkle because twinkling is an appearance caused by 

 looking at the stars through the air. The stars are as visible by day as by night 

 on the moon since there is no air to diffuse the light of the sun and thus obscure 

 the stars by day. The shadows on the moon are as black as midnight and sharply 

 defined, and if one should step into the shadow of a rock he would be, as much out 

 of sight as if he had stepped into a well of ink or put on the invisible cloak of the 

 fairy story. The reason for this is that there being no atmosphere for diffusion 

 of light on the moon every shadow is as black as midnight. We could not tell by 

 the appearance of the landscape what mountains were near or what were far because 

 there is no atmospheric perspective. On the earth we see certain mountains dimly 

 and others more plainly. This is because more of the atmosphere lies between us 

 and the dim or far away ones than between those that are nearer us. But on the 

 moon everything would seem to be in the same plane. Since there is no air on the 

 moon to act as a cushion or a buffer between the cold of space and the heat of the 

 sun, as we have around our earth, the part of the moon in shadow would be always 



