Name:
Particle Theory of Matter Worksheet
Use your prior knowledge, and your textbook (Section 4.1: pages 138-140 of Pearson – Investigating Science 9) to help
you answer the following questions.
1. Define Matter, Mass and Volume:
Matter:
Mass:
Volume:
2. Define: Particle Theory of Matter: _____
Complete the following statements that summarize the points of the particle theory of matter:
i. All matter is made up of extremely tiny objects called _____ and e ach pure substance has its own kind of
particle. These particles are _____ to each other, but different from the particles of other pure substances.
Explanation: _____
ii. All particles have _____ between them.
Explanation of spaces between a liquid, solid and gas: _____
iii. Particles present in matter are always in _____. Particles at high temperature move at a _____ rate than
particles at lower temperature.
Explanation of movements in a liquid, solid and gas: _____
iv. The particles in a substance _____ each other.
Explanation of attraction in a liquid, solid and gas: _____
3. Complete the following table to characterize particles in the three states of matter:
State
Diagram illustrating
particles
Relative particle distance
Relative particle rate of
motion
Relative particle attraction
Relative volume
Shape in relation to its
container
Compressibility
CHANGES OF STATE:
1:
2:
3:
4:
5:
6:
Solid
Liquid
Gas
Initial State
Solid
Final State
Change of State
Heat added or removed?
Liquid
melting
added
Solid
Liquid
Liquid
Gas
Gas
4. Explain the following phenomena using particle theory concepts:
a) Sidewalks are designed with cracks between the slabs.
b) If someone is wearing perfume, the people closest smell it first, and only later do people farther away.
c) Air needs to be added to a car's tires in the winter to keep them at the proper pressure.
d) A balloon placed in the fridge contracts.
e) When a kettle of water boils, steam comes out of the spout.
f) You can see the steam coming out of a kettle at first, but then it disappears.
g) When someone bakes bread in the kitchen, the smell spreads through the entire house.
h) An aerosol can explodes when heated in a fire.