Final answer:
The particle model of matter better matches observations of liquids and gases.
Step-by-step explanation:
The particle model of matter better matches observations of liquids and gases.
Liquids and gases are made up of particles that are constantly moving and are not fixed in a specific arrangement. In the particle model, these particles are considered to be in constant motion and have space between them. This matches the behavior of liquids and gases, where particles are free to move and the substances can take the shape of their surrounding containers.
For example, when a gas is heated, its particles gain more energy and move faster, causing the gas to expand. This expansion and the ability to fill the entire volume of a container is consistent with the particle model.
Learn more about Particle and continuous model of matter