Particle Model of Matter Worksheet
Explore the states of matter and their properties using the particle model in this Grade 7 Science worksheet.
Includes
Standards
Topics
Particle Model of Matter
Name:
Date:
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Read each question carefully and answer to the best of your ability. Use the provided image to help you answer questions about the particle model.
The image below illustrates the arrangement and movement of particles in different states of matter.
1. In which state of matter are particles most 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 and quickly?
Solid
Liquid
Gas
All of the above
3. The particle model states that all matter is made up of tiny, constantly moving .
4. When a substance changes from a liquid to a gas, the particles gain energy and move further apart.
5. Solids have a definite shape and volume because their particles are arranged in a pattern.
6. The particles in a liquid are able to slide past each other.
True
False
7. Gases have a definite volume but no definite shape.
True
False
8. Describe the main differences in particle arrangement and movement between a solid and a liquid.
Match the state of matter with its description.
9. Solid
a. Particles are able to move freely and quickly
10. Liquid
b. Particles vibrate in fixed positions, tightly packed
11. Gas
c. Particles are close together but can slide past each other
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