Читать книгу You Are the Earth - David Suzuki - Страница 31

29 t h  ng S to D o w h a t ’ s g o i n g o n ? T h e w at e r s t ay e d i n t h e g l a s s b e c a u s e t h e p r e s s u r e o f t h e a i r i n t h e r o o m p u s h i n g a g a i n s t t h e c a r d b o a r d w a s g r e at e r t h a n t h e p r e s s u r e o f t h e w at e r a g a i n s t t h e c a r d b o a r d . A ir Ma g i c Y o u c a n ’ t s e e t h e a i r , b u t t h i s a c t iv i t y s h o w s h o w re a l i t i s . w h a t y o u n e e d · A c l e a r ju i c e g l a s s · A p i e c e o f s t i f f l i g h t c a r d b o a r d a b o u t 1 2 c m ( 5 i n c h e s ) s q u a r e w h a t to d o D o a ll t h e s e s t e p s o v e r a la r g e s i n k . 1 . F i l l t h e g l a s s h a l f f u l l o f w at e r . 2 . W e t t h e r i m w i t h yo u r  n g e r a n d p u t t h e c a r d b o a r d o n t o p . 3 . P r e s s t h e c a r d b o a r d  r m l y a g a i n s t t h e r i m s o t h at t h e r e i s n o o p e n s p a c e . S t i l l p r e s s i n g t h e c a r d b o a r d w i t h o n e h a n d , t u r n t h e g l a s s u p s i d e d o w n w i t h t h e o t h e r h a n d . N o w c a r e f u l l y l e t g o o f t h e c a r d b o a r d . D i d t h e t r i c k w o r k t h e  r s t t i m e ? W h a t w o u l d h a p p e n i f y o u t u r n e d t h e g l a s s s i d e w ay s b e f o r e l e t t i n g g o ?