Day - Ch 1 - Practicing Science
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| science | a way of learning about the natural world through observations and logical reasoning; leads to a body of knowledge
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| observing | the process of using one or more of your senses to gain information
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| quantitative observation | an observation that deals with a number of amount
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| classifying | the process of grouping together items that are alike in some way
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| making models | the process of creating representations of complex objects or processes.
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| evaluating | comparing observations and datato reach a conclusion about them
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| scientific investigation | the process in which a scientist asks a question about the natural world, collects and analyzes data to help answer the question, and communicates the results to the scientific community
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| qualitative observation | an observation that deals with characteristcs that cannot be expressed in numbers
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| inferring | the process of making an inference, an interpretation based on observations and prior knowledge
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| predicting | the process of forecasting what will happen in the future based on past experience or evidence
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| Metric system | a system of measurement based on the number 10
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| International System (SI) | a system of units used by scientists to measure the properties of matter.
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| mass | the measure of how much matter is in an object
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| weight | the measure of the force of gravity acting on an object
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| volume | the amount of space that matter occupies
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| density | the measurement of how much mass of a substance is contained in a given volume.
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| estimate | an approximation of a number based on reasonable assumptions
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| accuracy | how close a measurement is to the true or accepted value
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| precision | how close a group of measurements are to each other
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| significant figures | all the digits in a measurement that have been measured exactly, plus one digit whose value has been estimated,
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| percent of error | a calculation used to determine how accurate, or how close to the true value an experimental value really is.
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| mean | the numerical average of a set of data
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| range | the difference between the greatest value and the least value in a set of data
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| median | the middle number in a set of data.
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| mode | the number that appears most often in a list of numbers
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| anomalous data | data that do not fit with the rest of a set of data
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| graph | a picture of information from a data table; shows the relationship between variables
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| line graph | a graph that shows changes over time
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| nonlinear graph | a line graph in which the data points do not fall in a straight line
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| Scientific inquiry | the ongoing process of discovery in science; the diverse ways in which scientists study the natural world and propose explanations based on evidence they gather
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| observational research | research that involves investigations trying to observe an event without interfering
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| hypothesis | a possible explanation for a set of observations or an answer to a scientific question; must be testable
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| dependet variables | the factor that changes as a result of changes to the independent variable in an experiment; also called the responding variable
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| data | facts, figures, and other evidence gathered through observations
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| variables | a factor that can change in an experiment
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| independent variables | the one factor that a scientist changes during an experiment; also called the manipulated variable
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| controlled experiment | an experiment in which only one variable is manipulated at a time
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| opinion-based research | research that involves investigations asking people quesions using surveys and interviews
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| linear graph | a line graph in which the data points yield a straight line
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
Mrs. Day
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