Noise pollution and Echoes

What creates pollution?

• water
• sunlight
• human activities

Tags

NGSS.MS-ESS3-4

chose two examples of noise pollution.

• chirping of birds

• A boy shouting in a loudspeaker

• Fighting in a conference meeting

• Sound of ocean waves

Tags

NGSS.MS-PS4-2

Which of the following is a harmful effect of noise pollution?

• Cold

• Deafness

• Cough

• Fever

Sound is caused by....

• molecules
• vibrations
• people
• space

___________ is made when something vibrates

• light
• sound
• drum
• pounding

Tags

NGSS.MS-PS4-1

True or False
You can hear in space.

• True
• False

Continuous honking of vehicles cause

• air pollution

• water pollution

• noise pollution

• all of these

Tags

NGSS.MS-ESS3-3

1.  Sound travels through gas.

• True
• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The reflection of sound waves off of a hard surface can create ______.

• A wave
• An echo 

Tags

NGSS.MS-PS4-2

Soft surfaces _______ sound waves. 

• Reflect
• Absorb

Tags

NGSS.MS-PS4-2