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Scientific Method and Math in Science
na
40
Science
8th Grade
09/12/2013

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Cards

Term
Observing
Definition
Using one or more of your senses to gather information.
Term
Quantitative Observation
Definition
An observation that deals with numbers or an amount.
Term
Qualitative Observation
Definition
An observation that deals with a description, cannot be expressed by numbers.
Term
Inferring
Definition
To explain or interpret what is observed.
Term
Predicting
Definition
Making a forecast of what will happen in the future based on past experience or evidence.
Term
Classifying
Definition
The process of grouping together items that are alike in some way.
Term
Scientific Inquiry
Definition
Refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence they gather.
Term
Hypothesis
Definition
A possible explanation for a set of observations or answer to a scientific question. A hypothesis must be testable.
Term
Variables
Definition
Factors that can change in an experiment.
Term
Independent (Manipulated) Variable
Definition
The one variable that is purposely changed to test a hypothesis.
Term
Dependent (Responding) Variable
Definition
The factor that may change in response to the manipulated (independent) variable.
Term
Controlled Experiment
Definition
An experiment in which only one variable is manipulated at a time.
Term
Control Group
Definition
The part of an experiment that serves as a standard to which variables are compared (Example: In the jelly side down lab, it was the piece of bread without jelly).
Term
Experimental Group
Definition
The set of data to which changes are made to test the hypothesis. (Example: In the Jelly Side Down Lab this was the piece of bread with jelly on it).
Term
Operational Definition
Definition
A statement that describes how to measure a particular variable or define a particular term.
Term
Communicating
Definition
The sharing of ideas and experimental findings with others through writing and speaking.
Term
Scientific Theory
Definition
A well-tested explanation for a wide range of observations or experimental results. Example: The theory of evolution. Theory's can be thrown out once new findings contradict this theory.
Term
Scientific Law
Definition
A statement that describes what scientists expect to happen every time under a particular set of circumstances. Example: The law of Gravity
Term
Scientific Inquiry
Definition
Being able to identify good sources of scientific information, evaluate them for accuracy, and apply the knowledge to questions or problems in life.
Term
Metric System
Definition
The system of measurement based on the number 10.
Term
Mass
Definition
The measure of the amount of matter in an object.
Term
Weight
Definition
The measure of the force of gravity acting on an object.
Term
Volume
Definition
The amount of space an object takes up.
Term
Meniscus
Definition
The curve in the surface of a liquid. You use the bottom of a meniscus to measure the volume of the liquid.
Term
Density
Definition
The measure of how much mass is contained in a given volume.
Term
Mean
Definition
The average of a set of data. Calculated by adding up all the numbers and then dividing by the total number of items on the list.
Term
Median
Definition
The middle number in a set of data. The data must be in numerical order. If there are two middle numbers you must find the middle by averaging those two numbers.
Term
Mode
Definition
The number that occurs the most in a set of data.
Term
Line Graphs
Definition
The most common graph used in science. It is used to display data by showing how one variable (the dependent variable) changes in response to another variable (the independent variable).
Term
x-axis
Definition
horizontal axis
Term
y-axis
Definition
vertical axis
Term
origin
Definition
The place where the x and y axis meet. (0,0)
Term
coordinate
Definition
A pair of numbers used to determine the position of a point on a graph.
Term
Line of Best Fit
Definition
A smooth line that reflects the general pattern of a graph.
Term
Linear Graph
Definition
A line graph in which the data points yield a straight line.
Term
Slope
Definition
The steepness of a graph line. Tells you how much y changes for every change in x.
Term
Nonlinear Graph
Definition
A line graph in which the data points do not fall along a straight line.
Term
No Trend
Definition
When there are no identifiable trends in a graph, it most likely means that there is no relationship between the two variables.
Term
Bias
Definition
Subjective, allowing personal opinions and preferences dictate your decision.
Term
Unbiased
Definition
Objective. Using only the facts to make your decision.
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