Make a screen out of the bed sheet or a big piece of white cloth. Switch off the light to make the room dark. Set a lamp behind the bed sheet/ cloth. 2. Place a toy behind the screen, about 10 cm away from the source of light. Notice the size ofanbsp;...
|Title||:||Science Spectrum 3' 2004 Ed.|
|Author||:||Fallaria, Et Al|
|Publisher||:||Rex Bookstore, Inc. -|