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Chapter 1

TermDefinition
Science A way of learning about the natural world through observations and logical reasoning; leads to a body of knowledge.
Observing The process of using one or more of your senses to gather information.
Inferring The process of making an inference, an interpretation based on observations and prior knowledge.
Predicting The process of forcasting what will happen in the future based on past experience or evidence.
Chemistry The study of the properties of matter and how matter changes.
Physics The study of matter, energy, motion, and forces, and how they interact.
Scientific Inquiry The ongoing process of discovery in science; the diverse ways in which scientists study the natural world and propse explanations based on evidence they gather.
Hypothesis A possible explanation for a set of observations or answer to a scientific question.
Parameter A factor that can be measured in an experiment.
Manipulated Variable The one variable parameter that a scientist changes during an experiment.
Responding Variable The variable parameter that changes as a result of changes to the manipulated, or independent, variable in an experiment.
Controlled Experiment An experiment in which only one parameter id manipulated at a time.
Data (quantitative and qualitative) Facts, figures, and other evidence gathered through observations. Quantitative describes data collected that includes numbers or amount. Qualitative includes no numbers.
Communicating The process of sharing ideas with others through writing or speaking.
Model A representation of an object or process.
Scientific Theory A well-tested explanation for a wide range of observations or experimental results.
Scientific Law A statement that describes what scientists expect to happen every time under a particular set of conditions.
Graph A picture of information from a data table; shows the relationship between variables.
Horizontal Axis A line that runs left to right along the bottom of a graph, on which the manipulated variable is labeled.
Vertical Axis A line that runs up and down along the side of a graph, on which the responding variable is labeled.
Origin The point on a line graph; where the x-axis and y-axis cross on a graph.
Coordinate A pair of numbers used to determine the position of a point on a graph.
Data Point A point on a graph showing the location of a piece of data.
Line of Best Fit A smooth line that reflects the general pattern in a graph.
Linear Graph A line graph in which the data points yield a straight line.
Slope The steepness of a line on a graph, equal to its vertical change divided by its horizontal change.
Nonlinear Graph A line graph in which the data points do not fall along a straight line.
Created by: lopez.ash