4th B - Science Quiz 13 - Feb 22nd, 2021

This is a preview of chapter 6. To find the answers look for the worlds in bold, on pages 116-121.

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Light is a form of ________________.

• energy

• light

• life

• fire

The straight line of light is called a _________________.

• ray

• line

• lighting

Light sources that can make light on their own, we call them ________________.

• luminous

• nonluminous

Most objects you see are ____________________. These objects cannot make their own light.

• luminous

• nonluminous

A ______________ substance allows light rays to pass through it.

• transparent

• translucent

• opaque

A ______________ substance allows some light rays to pass

through it.

• transparent

• translucent

• opaque

A ______________ substance does not allow any light rays to

pass through it.

• transparent

• translucent

• opaque

A ___________________ is a dark shape or area caused when an object blocks the light source.

• shadow

• dark spot

• covering