organized set of investigation procedures
Scientific Method
possible explanation for a problem using what you know and what you observe
Hypothesis
tests the effect of one thing on another using a control
Experiment
a quantity that can have more than one single value
Variable
variable whose value changes according to the changes in the other variables
Dependent Variable
the variable changed to see how it will affect the dependent variable
Independent Variable
a factor that does not change in an experiment
Constant
standard by which the test results can be compared
Control
when the scientist's expectation changes how the results are analyzed, or the conclusions are made
Bias
represents and idea, event, or object to help people better understand
Model
Explanation of things or events based on knowledge gained from many observations and investigations
Theory
statement about what happens in nature and that seems to be true all the time
Scientific Law
exact quantity that people agree ti use to compare measurements
Standard
improved version of the metric system
SI
amount of space occupied by an object
Volume
anything that takes up space and has mass
Matter
measurement of the quantity of matter in an object
Mass
mass per unit volume of a material
Density
visual display of information or data
Graph
application of scientific knowledge to benefit people
Technology
a group of people that share similar values and beliefs
Society
Although scientists do not always follow a rigid set of steps, investigations often follow a general pattern. The pattern of investigation procedures is called the...
Scientific Method
The variable changed to see how it will affect the dependent variable is called the..
Independent Variable
One common way to test a hypothesis. It tests the effect of one thing on another using a control
Experiment
This is a possible explanation for a problem using what you know and what you observe
Hypothesis
A factor that does not change is called a ...
Constant
A quantity that can have more than a single value
Variable
The variable that changes according to the changes of other variables
Dependent Variable
A standard by which the test results can be compared
Control
This occurs when the scientist's expectations changes how the results are analyzed or the conclusions are made
Bias
Represents an idea, event, or object to help people better understand it
Model
An explanation of things or events based on knowledge gained from many observations and investigations. It is not a guess
Theory
A statement about what happens in nature and that seems to be true all the time. Tells us what will happen under certain conditions, but they don't explain why or how something happens
Scientific Law
Scientists ask ___ and perform ____ to learn more about the natural world.
-questions
-investigations
Scientists use scientific _____ to test their hypotheses
methods
Models help scientists ______ concepts
visualize
A theory is a possible ______ for observations, while a scientific law describes a patter, but does not explain ____ or _____ things happen
-explanation
-why
-how
An exact quantity that people agree to compare measurements
Standard
In scientific measurements, the distance between two points
Length
The calculated amount of space occupied by an object
Volume
The measured amount of space occupied by a gas or liquid
Capacity
Anything that takes up space and has mass
Matter
A measurement of the quantity of matter in an object
Mass
The mass per unit volume of a material
Density
On this temperature scale, water freezes at 0 and boils at 100
Celsius
The standard unit of length in the metric system is the
Meter
The standard unit of capacity in the metric system is the
Liter
The standard unit of time in the metric system is the
Second
The standard unit of mass in the metric system is the
Kilogram
The Latin prefix for one-hundredth is:
Centi
The Latin prefix for one-thousandth is:
Milli
The Greek prefix for one thousand is
Kilo
The International System of Units, or __, was established to provide a _____ of _____and to reduce ____.
-SI
-Standard
-Measurement
-Confusion
The _____ of an object determines which _____ you will use to ___ it.
-Size
-Unit
-Measure
One meter is slightly ___ than a yard
Longer