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Unit1SI

QuestionAnswer
science a way of learning about the natural world that provides possible explanations to questions
observation using senses to identify or learn about something
inference conclusion formed from prior knowledge and available information or evidence
prediction stating an expected result of what will happen in the future
controlled experiment an investigation using the scientific method that involves changing one factor and observing its effect on one thing while keeping all other things constant
model a representation of an object or event that is used as a tool for understanding the natural world
independent variable the variable that is changed by the tester in an experiment (the cause)
dependent variable the variable that changes as a result of a change in the independent variable (the effect)
scientific method logical, empirical (based on observations), flexible process of problem-solving and conducting investigations
hypothesis an educated guess (prediction) and explanation that can be tested with a scientific investigation
data information gathered during an investigation
quantitative data descriptions of the natural world using numbers
qualitative data descriptions of the natural world using words (classifying)
description summary of observations (tells who, what, when, where)
explanation interpretation of observations (tells why or how)
precision how close (accurate) repeated measurements are to each other
consistency ability to repeat a task with little variation
mean the sum of values in a given set of data divided by the total number of values
median the middle value in a given set of data
mode the value that occurs most often in a given set of data
range the difference between the lowest value and highest value in a given set of data
Created by: akguidry