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Heating & Cooling Unit 1

Horizontales
Changes from a liquid to a solid and back to a liquid are called ___ changes.
Water vapor cannot be seen so it is ___.
The principle that says a cup of water in a solid, liquid or gas state is still the same amount of matter is called the ___ of matter.
When water reaches a ___ of 100 degrees Celsius, it boils.
When water is heated and begins to turn to vapor and evaporate, it has reached its ___ point.
The ___ of matter stays the same whether it is a solid, liquid or gas.
Verticales
When a warm, moist air in a house comes in contact with cold air outside, ___ can form on windows.
___ can change states when its heated.
Change from a gas to a liquid is called ___.
When ice is heated and begins to melt it has reached its ___ point.
Water is still ___ whether it is a solid, liquid or gas.
Water freezes at __ degrees Celsius.