Science 1st Qtr Keyterms Flashcards
(27 cards)
Observation . The action or process of what in order to gain what ? ( hint : use 5 senses to what ? a noting and recording of what ?)
The action or process of observing something or someone carefully or in order to gain information . Use one or more of the 5 senses to gather information . (A noting and recording of facts )
Research . What type of investigation into? What type of study ? in order to establish ?
The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions .
Theory . A set of what ?
Set of hypothesis that have been supported by testing over and over again .
Hypothesis . Suggested ____to a ___ or ___.
suggested answer to a question or problem .
Experiment . A scientific procedure undertaken to ? ( hint : make something , test something , or demonstrate something . )
A scientific procedure undertaken to make a discovery , test a hypothesis, or demonstrate a known fact .
Conclusion (the ___ or finish of an ___ or ___)
The end or finish of an event or process .
Results . An item of ? obtained by ? or ?
an item of information obtained by experiment or some other scientific method .
Data . Information you ___ when you ___ something.
Information you collect when you observe something .
Variable. Anything that can ___ the out__ of an ____ .
Anything that can affect the outcome of an experiment .
Independent Variable . A variable that ? Changed by who ? A good experiment has how many independent variables ?
A variable that is changed by scientist (a good experiment only has 1 independent variable ) .
Dependent Variable . Who focuses on the dependent variable? why do they focus on it ? (hint : usually observed or measured.)
The scientists focus on the dependent variable to see how it responds to the changes made to the independent variable ( usually observed or measured ) .
Control Group . A group in an experiment or study that does not ? By who ? Used as a what ? to measure what ?
The group in an experiment or study that does not revieve treatment by the researchers and is then used as a benchmark to measure how the other tested subjects do .
Experimental Group . The group in an experiment that ? How many variables tested at a time ?
The group in an experiment that receives the variable being tested . One variable is tested at a time .
Trials . __of a number of _____of an ____.
One of a number of repetitions of an experiment.
Constants / Controlled Variable . Does not change what ? Scientist want it to ? like the dependent variable it is observed and ____.
Does not change its value whatsoever the value of the variable the scientists want to remain the same . Also observed and measured carefully like the dependent variable .
Placebo . What type of substance ? Given to who? Serves as a what in an experiment ?
An inactive substance given to a patient as if it were active to serve as a control in an experiment .
Double-Blind . In this type of experiment neither the ___ or ____ knows which group is the _____
In this type of experiment neither the experimenter or subject knows which group is the control group .
Inferences . Logical ________ based upon prior ______ and _____ . Based upon _____.
Logical interpretation based upon prior knowledge and experience . Based upon observations .
Differnce between Inference and Observation? Which do yoh note down in experiments observations or inferences ? An inference may be used when writing what ?
note down observations in an experiment but not inferences . An inference may be used when writing the conclusion in your lab reports .
Unit
amount used to measure something
Meter
Basic unit of length or distance
Mass
amount of matter in something
Mass
amount of matter in something
gram
Basic unit of mass
