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Phys. science

Phys. science qtr. test

QuestionAnswer
The prefix kilo means? 1,000
The prefix milli means? .001
SI unit for temperature K
SI unit for time Kelvin
Variable plotted on x-axis (horizontal) Independant variable
How many meters are there in 1,865 cm? 186.5
The best type of graph to use when breaking data into sections Circle graph
What is the volume of .32 L of water in milliliters? 320 mL
A box is 25 cm long, 6 cm wide, and 4 cm high. How many cubic centimeters of water can it hold? 600
The 1st step in in designing an experiment State the problem
An explanation of an event that is based on a repeated observation and experiment. Theory
In an experiment to determine whether the popping of popcorn is affected by the temp. at which it is stored, counting the popped kernals is a ____ Observation
A factor in an experiment that changes from the minipulation of the independent variable is the ____ Dependant variable
A factor that doe NOT change in an experiment is the ____ Constant
Studying the effect of one thing on another in order to test a hypothesis is a(n) ____ Experiment
A factor that is minipulated in an experiment to change the dependant variable is the ____ Independant variable
Boiling of water, bursting of a balloon, and crumpling of a peice of paper are examples of ____ Physical change
The shape of an apple is a ____ Physical property
Fog is an example of a ____ Colloid
Another name for a homogeneous mixture is ____ Solution
When 2 or more substances are combined so each substance can be separated by physical means, the result is a(n) ____ Compound
A ____ is NOT a mixture Compound
____is NOT a homogeneous mixture Geletain
Matter that has a definite volume and a definite shape is a ____ Solid
Matter in which atoms are tightly held in place is a ____ Solid
A gas-like mixture with no definite volume or shape that is made up of positively and negitively charged particles is a ____ Plasma
Matter with no definite volume or shape is a ____ Gass
Matter that has a definite volume but not a definite shape is a ____ Liquid
Matter in which the particles are free to move in all directions until they have spread evenly throughout their container Liquid
Most matter ____ when heated. Expands
Compared to most substances, water is unusual because it ____ when it goes from the liquid to a solid state. Expands
The amount of energy needed to change a material from a solid to a liquid is called the heat of ____ Fusion
The amount of energy needed to changed a materia from a liquid to a gas is called heat of ____ Vaporization
As a sample of matter is heated, its particles ____ Move more quickly
Increaseing ____ raises the boiling poing of a liquid. Pressure
The particles that make up a solid move ____ than do the particles that make up a gas. More slowly
In a solution, the substance that is being dissolved is the ____ Solute
A solution that contains all of the solute i can hold at a given temperature is ____ Saturated
Increasing the surface area of a solid ____ Speeds the rate of the solution
When a gas is dissolved in a liquid, the gas dissolves faster if the liquid is ____ Cooled
An alloy is an example of a ____ solution. Solid
A molecule that is positively charged on 1 end and negatively charged on the other end is ____ Polar
Element All atos the same
Mixture Composition definite
Substance Composition variable
Compound 2 or elements combined
Matter Has mass, takes up space
Italian salad dressing is vinigar, oil, and spices. Is it a colloid, a solution, or a suspension after it is shaken well? Colliod
Created by: Musicfreak94
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