COmplete the diagram to compare solids, liquids, and gases in terms of whether each state of matter is a fixed or changing volume and shape.
Answers
Explanation:
Solid-Have fixed shape and volume.
Liquid-Have fixed volume but not have fixed shape.
Can-Do not have fixed shape or volume.
Explanation:
In this chapter we are going to review what we know about solids, liquids and gases. We are going to learn about a scientific model that can be used to describe how the particles in all three states behave. This model is called the particle model of matter and it will help us understand much more about the properties of solids, liquids and gases. Let's get started!
What is the particle model of matter?
scientific theory
phenomenon
disordered
uniform
random
reverse
controlled experiment
In the previous chapter we learnt that scientists use models when they want to describe things that are difficult to understand. We discussed a model of the atom that helped us to imagine what atoms look like.
This model of the atom shows us where the different sub-atomic particles can be found. The sub-atomic particles shown here are the proton, neutron and electron.
Theories are similar to models. They explain scientific phenomena (things and events that can be described and explained in scientific terms) using pictures and words.
What does the particle model of matter teach us?
The particle model describes matter in a very specific way. It describes four important aspects of matter:
All matter is made up of particles that are incredibly small - much too small to see with the naked eye. The particles can be atoms or combinations of atoms that are bonded.
There are forces between the particles.
The particles in matter are always moving. The more energy they have, the faster they move.
The spaces between the particles in matter are empty. You might assume that the spaces between particles are filled with air, but this is not the case. They contain nothing at all.