Particle Model
This model explains how tiny particles make up all matter.
What is the particle model of matter?
In this state, particles are packed closely in a fixed arrangement.
What is a solid?
This property is the amount of matter in a substance.
What is mass?
Strong attractive forces in solids prevent particles from doing this.
What is moving freely or sliding?
A balloon filled with air is still full of matter because gases have this.
What is volume?
According to the particle model, all matter is made of these extremely tiny things
What are particles?
This state takes the shape of its container but keeps a definite volume.
What is a liquid?
Liquids are often measured using millilitres or litres to describe this property.
What is volume?
Liquid particles can do this, allowing liquids to flow.
What is slide past each other?
When comparing densities of liquids, the densest liquid does this in a container
What is sinks?
Even in objects (solids) that look still, particles do this continuously
What is vibrate or move?
In this state, particles move quickly and spread far apart
What is a gas?
This property compares the mass of a substance to its volume.
What is density?
Gas particles do this in all directions because forces are weak.
What is move quickly or spread out?
A gas in a syringe is easy to compress because particles are this.
What is far apart?
The amount of this between particles helps determine the state of matter.
What is space?
Solids have this because their particles are tightly held together
What is a fixed shape (or volume)?
This property describes how much a substance can be squeezed into a smaller volume.
What is compressibility?
This state has the weakest attractive forces between particles.
What is gas?
Two objects the same size may have different masses because of differences in this property.
What is density?
These invisible forces pull particles toward one another.
What are attractive forces?
These three characteristics describe states of matter: particle movement, particle spacing, and this.
What is the strength of attractive forces?
These tools—like balances or scales—are used to measure this property.
What is mass?
Solids keep their shape mainly because particles do this type of movement only.
What is vibrate in place?
Water is harder to compress than air because the particles in a liquid are this.
What is close together?