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Physical Science Chapter 1 Section 1 Vocab

STUDY
PLAY
observing
using more that one sense to gather information
qualitative observation
descriptions that don't involve numbers
quantitative observation
measurements of height or weight or other numbers
inferring
an explanation of your observations based on prior knowledge
predicting
making a forecast of what will happen in the future based on past experience or evidence
chemistry
the study of properties of matter and how matter changes
physics
the study of matter and energy and how they interact
matter
anything that has mass and takes up space
energy
the ability to do work or cause change
Scientific Method 1
Identify a purpose or problem
Scientific Method 2
Conduct Background research
Scientific Method 3
Form a hypothesis
Scientific Method 4
Develop a Procedure to test a hypothesis
Scientific method 5
experiment: Collect Data
Scientific Method 6
Analyze data and construct graphs
Scientific Method 7
State a conclusion (evaluate hypothesis)
Hypothesis
Possible explanation for a set of observations or answer to a scientific question
variables
factors that can change an experiment
scientific law
statement that describes what scientists expect to happen every time under a particular set of conditions
Responding Variable (dependent variable)
Factor that may change in response to the manipulated variable
Controlled Experiment
Experiment in which only one variable is manipulated at a time
Manipulated variable (Independent Variable)
The one variable that is purposely changed to test a hypothesis
science
a way of learning about the natural world