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Answer Key
Grade 5 Science: Matter — Particle Model Intro
1.
particles
2.
closely/tightly
3.
slide/move
4.
far/spread
5.
energy/motion
6.
motion/movement
7.
conservation of matter
8.
mass/amount of matter
9.
closely packed together in a fixed arrangement
10.
gas particles are farther apart and move more freely
11.
the total amount of matter stays the same during physical changes
12.
particles move faster and spread apart more
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