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Matter and Temperature
Fresh Water
Changes in State
Gases
Anonymous
100
How many states of matter are there?
What is four
100
Fresh water, which is water that is not salty, makes up only ______ percent of the water available on Earth in the liquid state.
What is 0.75 percent.
100
During _________, a liquid changes to a gas gradually at temperatures below the boiling point.
What is Evaporation.
100
______ is the amount of force exerted per unit of area.
What is Pressure
100
The ability of a fluid or a gas to exert an upward force on an object immersed in it.
What is buoyant force.
200
What are the states of matter?
What is liquid, gas, water, solid.
200
The excess heat in the water is called?
What is thermal pollution.
200
_________ takes place when a gas changes to a liquid.
What is Condensation.
200
What is the SI unit of pressure?
What is pascal.
200
At lower altitudes what happens?
What is pressure increases.
300
The kinetic theory of matter is when?
What is tiny particles in constant motion make up all matter.
300
________ refers to water that contains such high levels of unwanted materials that it is unacceptable for drinking or other specific purposes.
What is polluted water.
300
The amount of energy needed to change a material from the solid to the liquid state is the?
What is Heat of Fusion.
300
A gas neither has a definite _____ nor a definite volume.
What is shape
300
The buoyant force on an object in a fluid is equal to the weight of the fluid is displaced by the object.
What is Archimedes principle
400
A gas like mixture of positively and negatively charged particles.
What is plasma.
400
Is pollution visible?
What is yes
400
The amount of energy needed to change a material from a liquid to a gas is the?
What is Heat of Vaporization.
400
Higher altitudes means?
What is less pressure.
400
What is Pacals first name?
What is Blaise
500
Almost all matter expands as it gets hotter and contrasts when it cools.
What is thermal expansion
500
What is the average amount of water a person uses in a day?
What is 1,700 gallons.
500
Can water evaporate from your skin?
What is yes.
500
Charles was able to calculate what?
What is the temperature at which a gas would have a volume of zero. (absolute zero)
500
As the velocity of a fluid increases , the pressure exerted by the fluid increases.
What is Bernoulli's principle