Science Notes Unit 7 Quiz

The examples of source of lights are __________

• sun, wood, fire, and candle

• sun, lamp, fire, and candle

• shadow, lamp, fire, and candle

We can see objects when light _____ our eyes.

• enters

• touches

• sees

During the daytime, _________ helps us to see things around us.

• stars

• moonlight

• sunlight

Which is the following statement is true

• We can see things in the dark.

• We can see shadow without light

• We cannot see things in the dark

It is harmful to _________

• switch on a light in a dark room

• cover our eyes when there is bright light shinning into our eyes

• shine directly to someone eyes

When lights enters our eyes, they _______ automatically.

• close

• open

• shine

Looking directly at very bright light, such as the sun, can harm our eyes.

• true

• false

• not sure

Shining bright light into someone's eyes is ___________ and should be avoided.

• easy

• playing

• dangerous

Shadows are formed when an object __________ light from passing through.

• go through

• blocks

• in front of

We need _____ to form a shadow