Lily investigates the pitch of sound.

She fills four glass bottles with different amounts of water.

Lily then hits each bottle with a stick and compares the pitch.

Lily then draws a diagram to show her results.

Which bottle contained the most air?

• A

• B

• C

• D

Tags

NGSS.MS-PS4-1

Lily investigates the pitch of sound.

She fills four glass bottles with different amounts of water.

Lily then hits each bottle with a stick and compares the pitch.

Lily then draws a diagram to show her results.

What is the dependent variable in this investigation? CLUE: It is what the researcher is measuring!!!!!

• The dependant variable is the amount of air in the bottle.

• The dependant variable is the pitch of the sound

• The dependant variable is the amount of water in the bottle

• The dependant variable is the colour of the water

Tags

NGSS.MS-PS4-1

Lily investigates the pitch of sound.

She fills four glass bottles with different amounts of water.

Lily then hits each bottle with a stick and compares the pitch.

Lily then draws a diagram to show her results.

Write a conclusion for this experiment. Which two statements are correct.

• The more water in the bottle the higher the pitch.

• The more air in the bottle, the lower the pitch.

• The more water in the bottle the lower the pitch.

• The less air in the bottle the lower the pitch.

Tags

NGSS.MS-PS4-1

Lily investigates the pitch of sound.

She fills four glass bottles with different amounts of water.

Lily then hits each bottle with a stick and compares the pitch.

Lily then draws a diagram to show her results.

How can Lily make the sound louder?

• Lily can use a smaller force

• Lily can add more water to the bottles

• Lily can hit the bottles with a stronger/greater force.

• Lily can ask her brother to help.

Tags

NGSS.MS-PS4-1

Hassan uses cymbals to make a sound.

Hassan hits the cymbals together. Describe how the cymbals make the sound Hassan hears. Select two statements that are correct.

• The cymbals start to vibrate.

• The cymbals start to shake.

• The sound then travels through the air to Hassan's ears.

• The sound does not travel anywhere.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which of the following are string instruments?

• 
• 
• 
• 

The chart shows the volume of some different sounds.

How many of the sounds have a volume of <50 units?

• 1

• 2

• 3

• 4

The chart shows the volume of some different sounds.

What is the difference in volume between a jet engine and city traffic?

• 40

• 50

• 60

• 70

The chart shows the volume of some different sounds.

The volume of sound may be loud or quiet.

Complete this sentence about the pitch of a sound.

The pitch of a sound may be low or _______________.

The chart shows the volume of some different sounds.

The volume of sound may be loud or quiet.

Complete this sentence about the pitch of a sound.

The pitch of a sound may be ________ or high