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نانسي مدحت حسام Sun 26 Apr 2015, 9:35 am(1) Complete:
-The solar eclipse doesn't last more
Seven
....... minutes and
fourty
........ seconds.
---------------------------------------
(2) What happens:
-A dark object is placed between a lighted candle and a scree.
It casts its shadow on the screen
...................................
-The solar eclipse doesn't last more
Seven
....... minutes and
fourty
........ seconds.
---------------------------------------
(2) What happens:
-A dark object is placed between a lighted candle and a scree.
It casts its shadow on the screen
...................................