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### matter Expansion and Contraction Solutions

The states that particles of matter are in constant motion and this motion determines what state of matter the substance is. Kinetic Theory of matter
An ice cube will weigh – MORE or - when it is frozen solid, than when it has melted? The Same
The states that matter cannot be created or destroyed in any chemical or physical change. Law of Conservation of Mass
During a change, a new substance forms (– metal rusting AND burning paper turns into ash…it could weigh less because it also produces a gas (smoke) that was given off)) chemical and example
During a physical change the substance is the same ( – cutting carrots in a salad…they’re still carrots even though I cut them…ALSO ice melting just changes state) physical and example
Oobleck is a liquid
What are 2 ways a liquid can change to a gas? Boiling and evaporation
A wet towel drying on a clothes line is an example of evaporation
How would a model of a solid, liquid, and gas differ?? By the way the particles are arranged
Which one has the greatest amount of energy?? the gas
Which one has the greatest density? the solid
When a metal ball is heated, it can no longer fit through the ring (think of the lab) because the heat made it expand
When a sidewalk is made, why do they leave a small space between the sections?? To allow for expansion and contraction, so it won’t crack
If you add a solute to water, it will the freezing point and l the boiling point. raise and lower
Created by: randolphk

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