Light and Dark

Our main light source on the earth is . . . .

• sun

• moon

• lamp

The example of natural light source is . . . .

• 
• 
• 

Shadow was formed when the light blocked by . . . object.

• transparent

• translucent

• opaque

If an object moved closer to the light source, the shadow gets . . . .

• bigger

• smaller

• shorter

Which of this is the light source?

• 
• 
• 
• 

Which one of these pictures shows the correct position of shadow and lightsource?

• 
• 
• 

Which is NOT a source of light?

• firefly

• ball

• sun

• torch

Which one is a natural source of light?

• 
• 

Where will the tree's shadow be?

• A

• B

• C

Light travels in ................. lines

• Straight

• curved