What makes up all the matter around us? If we were able to break
up a piece of steel into smaller and smaller parts, what would we get
at the end? Would we get the same thing if we broke up a piece of
plastic? Could we break up a droplet of water? Ice, water and steam
are all the same chemical substance, yet they behave very differently.
How can we explain this?
Models are used by scientists because they help to explain many
observations. Scientists have developed a way of thinking about
matter that explains its nature and behaviour. They believe that all
matter is made up of tiny
particles, called atoms. These are so small
that they can only be seen with powerful microscopes. If you could
see deep inside solids, liquids and gases, how do you think the
particles that make them up might be arranged?
The theory that we have to explain the properties of solids,
liquids and gases is called the
particle model of matter.
Solids, like ice, have constant shape because particles of solid
In a crystal the particles are arranged in a lattice.
molecules are arranged in good order along the fibers
Particles tightley packed together do not change position PS trees
yes
In a solid, particles such as atoms or molecules are closely packed together, touching each other and arranged in a fixed, orderly structure. However, in a liquid, particles are still in close contact but are randomly arranged and can move past one another, allowing the liquid to flow. In contrast, gases have particles that are far apart and not touching each other, moving freely in random directions.
In a crystal the particles are arranged in a lattice.
The particles in a crystalline solid are arranged in a repeating pattern.
Particles in a gas state are randomly arranged. Additionally, particles in a plasma state are also randomly arranged.
They are arranged in groups of six.
They are arranged in groups of six.
yes.
The gas particles are freely moving because they are not tightly arranged together
Particles that are not arranged in a regular pattern are typically found in amorphous materials. In amorphous solids, the particles are randomly arranged and lack a long-range order seen in crystalline solids. Examples of amorphous materials include glass, certain polymers, and gels.
molecules are arranged in good order along the fibers
a.closely packed together b.far apart c. very far apart d. very very far apart
Particles tightley packed together do not change position PS trees
Amorphous