57 terms

Science: Solids, Liquids, and Gases

A solid is a state of matter that has a ________.
definite volume and a definite shape.
The resistance of a liquid to flowing is its________
Particles of a liquid are _____________________.
free to move in a container but remain in close contact with one another.
In which state of matter do the particles spread apart and fill all the space available to them?
The force of a gas's outward push divided by the area of the walls of the container iis the gas's ___________.
The greater the speed of gas particles in a container, the _______________________.
greater the pressure
When an inflated balloon is exposed to cold air, _____________.
the volume of the balloon decreases.
During the process of sublimation, _____________.
a solid turns directly into a gas.
The surface of water can act like a sort of skin due to a property of liquids called _______________.
surface tension
The change from liquid to solid, or the reverse of melting, is called _________________-.
The freezing point of water is the same as its ____________.
melting point
What is vaporization?
a liquid becoming a gas
An uncovered pot of soup is simmering on a stove, and there are water droplets on the wall above the back of the stove. What sequence can you infer has occurred?
vaporization, then condensation
The boiling point of a substance is affected by _____________.
the pressure of the air above the substance.
The opposite of vaporization is called _______________.
Data plotted on a graph results in a line that slopes upward from left to right. This graph tells you that __________________________.
when one variable increases, the other variable increases
In cold climates, the amount of snow on the ground may decrease even if the temperature stays below zero degrees Celsius. The process that best explains this event is ___________________.
When the temperature of a gas at constant volume increases, its ____________________.
pressure increases
A fluid is _________________.
a substance that flows
The amount of space that a gas takes up is its _____________.
In which state of matter are particles packed tightly together in fixed positions?
Which state of matter undergoes changes in volume most easily?
The state of matter in which particles are arranged in either a crystalline or an amorphous form is ___________________.
The energy of matter in motion is called_________________.
kinetic energy
Table sugar and table salt are examples of _________________.
pure substances
Which of these statements is false?
a. oxygen and copper are examples of elements
b. elements are pure substances
c. atoms of different elements can combine to form compounds.
d. atoms of different elements are the same.
d. Atoms of different elements are the same.
According to Boyle's law, when the pressure of a gas increases at constant temperature, its volume ________________.
According to Charles' law, when the temperature of a gas increases at constant pressure, its ______________.
volume increases
When the temperature of a gas decreases at constant volume, its ______________.
pressure decreases
A graph of Charles' law shows the relationship between ___________________.
temperature and volume of a gas
A graph that shows that the pressure of a gas varies inversely with its volume under constant temperature demonstrates _________________.
Boyle's Law
A graph that shows that the volume of a gas is directly proportional to its temperature under constant pressure demonstrates______________.
Charles' Law
A graph of Boyle's Law shows the relationship between __________________.
volume and pressure of a gas.
T or F: A liquid does not have a definite shape, but it does have a definite volume.
T or F: Particles in a liquid move around just as freely as particles in a solid.
False, more freely than
T or F: In a rigid container, as the temperature of gas decreases, the pressure of gas will decrease.
T or F: The type of graph tht results when the volume of a gas is measured as its pressure is changed (at constant temperature) is a straight line.
False, curved line
T or F: Pieces of dry ice (solid carbon dioxide) become smaller through the process of condensation.
False, sublimation
T or F: At its boiling temperature, the particles of a liquid are moving so slowly that they begin to form regular patterns.
False, freezing temperature
T or F: In crystalline solids, the particles are not arranged in a regular pattern.
False, amorphous solids
The resistance of a liquid to flowing is called __________.
Salt, sugar, and snow are examples of _________ solids.
When a graph of two variables shows a straight line passing through the point (0,0) the two variables are __________ proportional to each other.
A shrinking puddle is an example of __________, or vaporization that takes place only on the surface of a liquid.
When a substance cools, it loses ______ energy to its surroundings.
Solids that have particles arranged in a regular, repeating pattern are know as ______________ solids.
In a ___________, the particles are packed closely together, but they can move past each other freely.
Sublimation is the change of a solid directly into a _____________.
______________ occurs when particles in a gas lose enoug thermal energy to form a liquid.
______________ is a measure of the average energy of motion of the particlesof a substance.
When the temperature of a gas in a balloon increases, the volume of the balloon will ____________.
The graph of Boyle's law shows that as the volume of a gas at constant temperature is changed, its pressure varies ______________ with the volume.
See diagram: In which state are the particles least able to move? Explain.
State B becasue the particles are connected together.
See diagram: Which of the three states represents a liquid? How do you know?
State A because the particles are able to move around but are still held together a little bit.
See diagram: Which of the three states would you expect to be most affected by the shape of its container? Explain.
State C because gases have no definite shape so it takes the shape of the container.
See diagram: Classify each of the three states as gas, liquid, or solid.
State B- liquid
State A- solid
State C- Gas
See Diagram: If State A is heated, which of the othe two states would it more closely resemble? Explain.
State C, becasue the particles are not connected together so they will spread apart a lot like a gas.