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14 terms

Physical Science-Chapter 1 Vocabulary Review

Chapter 1 Vocabulary
STUDY
PLAY
observing
using one or more of your five senses to gather information
qualitative observation
descriptions that do not involve numbers
quantitative observation
descriptions that involve numbers (or measurements)
inferring
explaining or interpreting the things that you observe
predicting
forecasting what will happen in the future based on past experience.
hypothesis
possible answer to a science question or explanation for a set of observations.
manipulated variable
variable that is changed
responding variable
variable that changes as a result of changes in the manipulated variable
controlled variable
a variable that is kept the same during an experiment
controlled experiment
an investigation in which all the variables remain the same except one
data
the facts, figures and other evidence gathered through observations.
communicating
sharing ideas and conclusions with others through speaking and writing
law
statement that describes what scientists expect to happen every time under a particular set of circumstances
theory
well-tested explanation for a set of observations