4th Grade Nature of Science 10.3 - 10.4

Jacob stretched a rubber band between his index fingers. When his friend plucked it, a sound was made.

Which is the best explanation for why sound was heard?

• The air around the rubber band was heated

• The rubber band absorbs energy from the air

• The rubber band releases molecules into the air causing sound

• The rubber band vibrates the air

Tags

NGSS.MS-PS4-2

Mona hits a tambourine with her hand and makes it vibrate. She then puts the tambourine on a table and stops the vibration.

What happened to the sound of the tambourine?

• The sound stops because the table absorbs the sound

• The sound stops because the vibrations have stopped

• The sound continues but it has a lower pitch because of the table

• The sound continues but it isn’t as loud because of the table

Tags

NGSS.MS-PS4-2

Douglas was at the Lowry Park Zoo. He heard a tiger roar.

What did the pitch of his voice sound like and why?

• The pitch was high because his vocal chords vibrated quickly

• The pitch was low because his vocal chords vibrates quickly

• The pitch was high because his vocal chords vibrated slowly

• The pitch was low because his vocal chords vibrated slowly

Which of the following places would allow you to travel in complete silence?

• The ocean

• A solid wooden room

• Outer space

• An underground cave

The music teacher asked her class how she could create a high pitched sound with her guitar strings.

Which is the correct answer?

• Pluck the thickest string

• Pluck the thinnest string

• Pluck all the strings at once

• Tap on the side of the guitar

Tags

NGSS.MS-PS4-1

Brooklyn wants to play with an object that uses wind as its main source of energy.

Which one of these should she choose?

• A bicycle

• A remote controlled helicopter

• A pair of water skis

• A sailboat

In the picture, what is the source of energy that allows the turbines in the dam to spin and create electrical energy?

• Sun

• Water

• Electricity

• Wind

Tags

NGSS.MS-PS3-5

When hiking in the woods, Kimberly came upon a waterfall.

Which type of energy does moving water have?

• Electrical energy

• Energy of motion

• Thermal energy

• Moving water does not have energy

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

Christopher was looking at a water wheel like this one in the illustration. His teacher asked him to explain how a water wheel works.

Which is the best explanation for Christopher to use?

• Water keeps the wheel from turning fast, keeping it from making noise

• Water turns the wheel making it do work and creating energy

• Water turns the wheel to keep the river from flooding

• Water wheels cannot be used to create energy

Tags

NGSS.MS-PS2-5

Look carefully at the illustration.

What do these objects do?

• Capture wind energy and convert it to electricity

• Capture water energy and transfer it to sound energy

• Capture both wind and water energy

• Capture solar energy and covert it to energy of motion