Composition of Matter
All elements are composed of extremely small particles called ___________.
Atoms
Dissolving salt in water is an example of which kind of change?
Physical Change
Liquid water, ice, and water vapor are all different states of __________.
Matter
The reverse of melting, from a liquid to a solid, is called what?
Freezing
Pascal's principle deals with which type of substance?
Fluid
Soil, a salad and sugar water are all examples of _________.
Mixtures
Burning wood is an example of which kind of change?
Chemical Change
A _________ is a state of matter that has a definite shape and definite volume.
Solid
A liquid becoming a gas is this phase change.
Vaporization
What scientific rule explains why water squirts from a bottle when it is squeezed?
Pascal's Principle
An object's __________ is a measure of the force of gravity acting on the object, not the amount matter in the object.
Weight
A change that produces one or more new substances is called a __________ change.
Chemical
Identify the state of matter where particles are free to move about one another but remain in close contact with one another.
Liquid
If water boils on the stove and changes into gas, then that gas settles back on the stove as water droplets, what two phase changes occur?
Vaporization, condensation
Buoyant force acts on an object in which direction?
Upward force
A __________ is a substance formed from two or more elements that are chemically combined.
Compound
The law of conservation of mass states that matter is not ___________ or ___________.
Created/Destroyed
In which state of matter do the particles spread apart and fill all the space available to them?
gas
The opposite of vaporization is called________.
Condensation
Flight is explained in part by ___________ Principle.
Bernouilli's
In what kind of mixture can you see the different parts?
Heterogeneous Mixture
A substance that undergoes a ___________ change is still the same substance after the change.
Physical
Particles are tightly packed together and in a fixed position in this state of matter.
Solid
A type of vaporization that occurs only on the surface of a liquid, like a puddle drying up, is called what?
Evaporation
According to Charles's Law, when the temperature of a gas increases at constant pressure, its volume __________.
Increases