LONumber=PC00214; CorrectionKey=NL-A;GA-A S1P1.d

Active ReadingActive Reading

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Essential Question

Lesson VocabularyPreview the lesson.

Write the four vocabulary terms here.

Find the answer to the question in the lesson.

What kind of sound does a marching band make?

a sound

Find the answer to the

What Is Sound?3

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J S1P1.d Vibrations and sound

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Find the sentence that tells the meaning of sound. Draw a line under the sentence.

Listen. What do you hear? Is it a person talking? Is it a pencil tapping? Both are sounds. Sound is a kind of energy you hear.

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The top of a drum vibrates and makes a sound when you hit it.

The strings on a guitar vibrate and make sounds when you pluck them.

Sound is made when an object vibrates. To vibrate is to move quickly back and forth.

Touch your throat and hum. What happens?

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Some sounds are loud. Other sounds are soft. Loudness is how loud or soft a sound is. A loud sound can make you cover your ears. A soft sound can be hard to hear.

Loud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or SoftLoud or Soft

When things are contrasted, you fi nd out ways they are different. Draw triangles around two things that are being contrasted.

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Some sounds are high. Some sounds are low. Pitch is how high or low a sound is.

An instrument can make a loud or a soft sound. Its loudness changes with how you play it. A drum makes a louder sound if you hit it harder.

Look at the xylophone. 1. Which bars have a low pitch?

the bars

2. Which bars have a high pitch?

the bars

high pitch low pitch

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Why It Matters

Sound is important to everyday life. Some sounds give you information. People talk to each other to learn things. A dog’s bark may let you know that a person is coming. Sounds can warn you, too. A smoke detector warns of a fire.

What do these sounds tell you?

Listen Up!Listen Up!Listen Up!

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Draw an X on the picture that tells you someone is at the door.

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Sum It Up!Sum It Up!

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Circle the place where people are quiet. Draw an X on the place where people are loud.

Mark It!

Choose It! Draw It!

Circle the bell with a higher pitch.

Draw an object that makes a warning sound.

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Brain Check

Word PlayName

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pitch sound vibrate loudness

1. dnsuo A is a kind of energy that you hear.

2. bivtare To is to move quickly back and forth.

3. doulsens A sound’s is how loud or soft it is.

4. ctpih A sound’s is how high or low it is.

Unscramble the word to complete each sentence.

3

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Apply Concepts

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Family Members: Take a walk outside with your child. Ask your child to describe the loudness and pitch of the sounds you hear.

Write to complete the chart.

Answer the question below.

1. Kind of Sound Example

loud hammer banging

soft

high bird chirping

low

2. What warning sounds have you heard? Write a sentence about one of them.

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