Which group contains only light sources?, book, apple, pen, and trees, Sun, fire, lamp, and torch, shadow, book, lamp, and apple, Where does the light come from when we use a torch?, It comes from the torch., It comes from the shadow., It comes from the book., A book is between a lamp and a wall. What happens?, The lamp blocks the book., The book becomes a light source., The book blocks the light and makes a shadow., There is a shadow of an apple on the wall. What makes the shadow?, The apple blocks the light., The apple gives light., The shadow blocks the apple., Which sentence is correct about fire?, Fire is a shadow., Fire is a light source., Fire blocks all light., Why are there shadows of trees on the ground?, The trees give light to the Sun., The shadows block the trees., The trees block light from the Sun., When is a tree’s shadow long on a sunny day?, It is long in the morning., It is always short., It is long at noon., Which description is correct at noon on a sunny day?, The shadow is long., The shadow is short., There is no light.

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