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Physcial Science Chapter 2 Vocabulary Test

Across
The change in state directly from a gas(vapor) to a solid without condensing first.
The temperature at which a liquid starts to boil.
The change in state directly from a solid to a gas(vapor) without melting first.
A gas-like state of matter, formed at very high temperatures, that consists of high-energy ions and free electrons.
A change that alters the chemical composition of a substance.
A mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid.
A model that states that all physical matter exists in the form of particles.
A pure substance that consists of atoms with the same atomic number.
A physical combination of 2 or more substances in a changeable ratio.
The temperature at which a solid turns to a liquid
The relatively fast form of vaporization in which the energy within a liquid creates higher pressure within the liquid than the air pressure outside the liquid.
The measure of the amount of matter in an object.
The relatively slow form of vaporization in which liquid particles obtain sufficient energy to change the gaseous state through the random collisions of particles.
The force of gravity acting on the matter in an object.
The change of state from a liquid to a solid.
The change of state from liquid to a gas(vapor).
Down
The mass per unit volume of an object.
The space enclosed or occupied by an object.
A pure substance consisting of atoms of 2 or more elements that are chemically combined in a fixed ratio.
The state of matter in which particles are close together but able to move around.
A particle consisting of 2 or more atoms covalently bonded together.
A mixture that does not have a uniform appearance since the combined substances are unevenly distributed.
Anything about a substance that can be observed or measured without altering its chemical composition.
A material made of only one kind of element or compound.
The building block of all matter; consists of protons, neutrons(usually), and electrons.
The change of state from a gas(vapor) to a liquid.
The change of state from a solid to a liquid
anything that has mas and occupies space.
The state of matter in which particles vibrate in a fixed position.
The state of matter in which particles are far apart, move rapidly, and have little interaction with each other.