Sound: Lesson 54What's that sound all around?

Expectations:1. Listen carefully2. Work hard3. Be responsible

Review:Objects used to focus sound make the

energy concentrated, sounding louder.

A megaphone is one object that concentrates sound.

Sound can travel through solids, liquids, and gases.

Listening

What sounds do you hear in everyday life?

What are these sounds and why are they necessary?

Sounds all Around

Talking

Animals

Music

Laughing

Water flowing

Horns and sirens

Yelling

Insects

Thunder

Wind

So many sounds

There are many different sounds in our life.

There are sounds that alert us to problems, sounds that entertain us, sounds of machines making things work, and sounds to communicate.

These sound waves can travel through solids, liquids, and gases.

Ways we count on sound

Danger signals

Communication

Enjoyment Home and School

Ways we count on sound

Danger signals Siren ScreamGrowl AlarmBeeps Thunder

CommunicationTalk LaughingWords YellingWhisper

EnjoymentMusic SingingNature HummingWhistle Laughing

Home and SchoolTalking SweepingPencil on paperObjects hitting each other

Sound all Around Sound is all around us in our everyday lives.

It is important to be able to communicate with others, to learn, to be informed, and to have sound for enjoyment.

Review There are many different sounds in our

life. We have sounds that alert us to problems, sounds that entertain us, and sounds of machines making things work, just to name a few. These sound waves can travel through solids, liquids, and gases.

We perceive these sounds through our ear, which converts it to signals and sends the information to our brain.

Assignment:http://www.exploratorium.edu/listen/online_watch.php

Choose two videos and watch how people use listening in their lives and jobs.

Write down two jobs where good listening is important. Write two sentences for each about why this job needs good listeners and what would happen if they didn't listen well.

I had fun learning and working with you today!

Keep your eyes and EARS open, scientist! I will see you next lesson.