BCA: 7th Grade: Science: Thermal Energy and Particle Movement

______ is used to explain how solids, liquids, and gasses are interchangeable as a result of increase or decrease in heat?

• Kinetic theory of matter

• Matter theory of matter

• Thermal theory matter

• Music theory matter

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When ____ is added to a substance the motion of the particles increase and is more energetic.

• vacuum
• heat
• pressure
• cold

Tags

NGSS.MS-PS1-4

When an object is cooled the particles have _____ energy and move more ______?

**When typing your answers, you must use a semicolon ( ; ) between your answers:

ex: truck; car

Tags

NGSS.MS-PS1-4

Solids is matter with a ​​​_____ shape and _____ volume.

(a)  

• indefinite; indefinite
• definite; definite
• fluid; indefinite
• definite; fluid

Particles are packed ______ together in Solids.

How do the particles move or react in solids?

• Particles in solids flow like liquids.
• Particles in solids are in a gaseous state.
• Particles in solids vibrate in fix positions and do not move freely.

• Particles in solids move freely in all directions.

Tags

NGSS.MS-PS1-4

Which statement best describes the attraction between particles in solids?

• The attraction between particles in solids is weak, allowing them to move freely.
• Particles in solids are loosely arranged and can easily change positions.
• The attraction between particles in solids is strong, keeping them closely packed and fixed in position.
• The attraction between particles in solids is similar to that in gases, with large distances between them.

Solids have particles that are packed ​ (a)   together and ​ (b)   in place and have ​ (c)   attractive forces.

• close
• vibrate
• strong
• loosely
• spread out
• weak

Liquid matter has ____ shape, but _____ volume.

• no definite, definite

• definite, variable

• no shape, variable

• fixed shape, no

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3

Particles are _________, but are able _______ past each other in liquids.

• uniformly distributed; to sink
• loosely arranged; to stay still
• randomly scattered; to collide
• close together; to move or slide

Tags

NGSS.MS-PS1-4