Sound and Light-3rd Grade

Photos courtesy of Google images

What are the three forms of energy?

1. Sound

2. light

3. heat

A form of energy that you hear is called…..

sound

Sound Discrimination means……

Hearing how sounds are different.

Sound is made when objects vibrate.

Vibrate means……

To move back and forth.

Sound can be absorbed or reflected.

Absorbed means…. Sounds are taken in by things likecarpet and furniture.

Reflected means….. Sounds bounce around like echoes.

A form of energy that you hear.

Sound is…..

How high or how low a sound is, is called…..

pitch

How loud or how soft a sound is, is called

volume

A form of energy that you can see is called…..

light

The glass triangle used to separate light into colors is called a……

prism

This band of colors made from a prism is called a….. spectrum

A form of energy that you can see.

Light is…

To be able to see clearly through something is called…..

transparent

To be able to see through something, but not very clearly is called…

translucent

If you can’t see through something at all it is called…..

Opaque (o-pake)

Transparent, translucent or opaque?

Opaque (o-pake)

Transparent, translucent or opaque?

Translucent

Transparent, translucent or opaque?

The wings are transparent.

Transparent, translucent or opaque?

opaque

Transparent, translucent or opaque?

The beads are translucent.

Transparent, translucent or opaque?

The fish is translucent.

Transparent, translucent or opaque?

The screen is transparent.

Transparent, translucent or opaque?

The wall is opaque.

Transparent, translucent or opaque?

The camera is translucent.