SCIENCE AND PLBJ QUIZ

We can see a thing because the ​ (a)   ​ (b)   to the thing and it ​ (c)   the ​ (d)   into our ​ (e)  

• light
• travels
• reflects
• eyes

The angle of which a ray of light reaches the normal line is called the ​ (a)   . The angle of which the ray of light is reflected from the normal line is called the ​ (b)   . This means that the light reaching the mirror is the ​ (c)   , while the light leaving the mirror is the ​ (d)  

• angle of incidence
• angle of reflection
• incident ray
• reflected ray
• Normal line
• deam

The ​ (a)   , fire, lamp, flashlight and candle is a ​ (b)   because their light ​ (c)   directly into our ​ (d)   .

• Sun
• light source
• travel
• eyes
• mirror
• light reflector

Glass, ​ (a)   and shiny metals can ​ (b)   a lot of ​ (c)   .

• water
• reflect
• light
• stone
• wood
• sound
• incident

We can ​ (a)   the Moon ​ (b)   because the ​ (c)   from the ​ (d)   .

• see
• at night
• reflects light
• Sun
• moon
• touch
• at noon

The Moon​ (a)   a light source. It ​ (b)   like a ​ (c)   in the ​ (d)   .

• is not
• acts
• giant mirror
• sky
• sea
• is

​ (a)   cannot ​ (b)   through ​ (c)   materials.

• Light
• travel
• opaque
• transparent
• sound
• absorb

There is no reflection of someone from the door because the door is ​ (a)   material. It ​ (b)   reflect light. It ​ (c)   light.

• an opaque
• does not
• absorbs
• a translucent
• can
• reflected

​ (a)   materials ​ (b)   the best shadow.

• Opaque
• give
• Translucent
• Transparent
• take

The materials to build our homes are made of ​ (a)   materials because sometimes we need ​ (b)   . Other parts made of ​ (c)   materials because they ​ (d)   to pass through them, so we can ​ (e)   everything clearly in our homes.

• opaque
• privacy
• transparent
• allow light
• see
• to hide
• absorb light