160 



HOW WE USE LIGHT 



11. How can you adjust your desk study light to give you 

 efficient lighting ? 



REPORTS UPON WHAT I HAVE READ, DONE, OR SEEN 



1. Report upon an article related to some topic discussed in 

 this unit. The article may be from a current number of a science 

 magazine or from some popular science book you have read. 



a. The importance of transparent glass. 



6. Colors in the sky. 



c. An automobile headlight. 



d. The eyes of man and of insects. 



SCIENCE RECREATION 



1. FUN WITH SHADOWS 



Hang a sheet to cover a doorway. Have the audience in a 

 darkened room. In the other room have one very strong light. 







' 



1 ctttcCievice 



1 i 



v 



\ 



actors- 



reflector 

 stroi 



Make pantomime shadow pictures by acting between the light 

 and the screen. Plan a shadow play. 



2. AN "ANGLESCOPE" 



Sometimes you like to watch a person without his suspecting 

 it. You can apparently be looking through a tube in one direction, 



mirror- 

 but really see what is going on at one side. 

 The diagram will suggest how to place a mirror 

 in a mailing tube having a hole cut in the side. 



3. MAKE A PERISCOPE 



Secure a long mailing tube about 2 inches in 

 diameter and two small mirrors (2 for a nickel 



.Mirer 



