When sound is produced here it is usually pleasant.

• True

• False

Tags

NGSS.MS-PS4-2

Sound can either be unpleasant or _________

• Pleasant

• Unemotional

• Pressured

When babies do this in the middle of the night the sound is usually ___________

• Unpleasant

• Pleasant

• Kind

Tags

NGSS.1-PS4-1

We see light before we hear sound.

• True

• False

Sound can travel through different mediums like gas, water and walls

• False

• True

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Pleasant sounds are usually ________

• Unfriendly

• Friendly

• Angry

Mary picks up her flute during a school concert and plays a melody of Mary had a little lamb. Everyone stood up and applauded her. That means Mary just produced _______ sound.

• A pleasant sound

• An unpleasant sound

• A horrible sound

When people talk to each other this way they always sound pleasant.

• True

• False

When i move things back and forth quickly i make them ________

• Vibrate

• Disappear

• Strong

Tags

NGSS.MS-PS4-1

People can feel their throat vibrate when they talk.

• True

• Maybe

• False

Tags

NGSS.MS-LS1-8