Particle Model of Matter
Explore the particle model of matter, understanding the arrangement and movement of particles in solids, liquids, and gases.
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Particle Model of Matter
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Read each question carefully and answer to the best of your ability. This worksheet will test your understanding of the particle model of matter.
1. In which state of matter are particles tightly packed and vibrate in fixed positions?
Liquid
Solid
Gas
Plasma
2. Which state of matter has particles that are far apart and move randomly?
Liquid
Solid
Gas
All of the above
Observe the image below showing the particle arrangement in different states of matter.

1. In a solid, particles have a fixed and vibrate in place.
2. Liquids take the shape of their container because their particles can past each other.
3. Gases have no fixed shape or because their particles are far apart and move freely.
1. When a substance melts, its particles gain energy and move closer together.
True
False
2. Evaporation is the process where a liquid turns into a gas.
True
False
1. Describe the main differences in particle arrangement and movement between a liquid and a gas.
2. Explain what happens to the particles of a substance when it condenses.