Chapter 1: Introduction to Physical Science

17 terms by aRiElRoX 

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sudy guide we got today for the science test friday, october 15th

Scientific Inquiry

Different ways scientist study the natural world

Steps of scientific inquiry

1.posing questions, 2. developing a hypothesis, 3. designing experiments, 4. collecting/interpreting data, 5. drawing conclusions, 6. communicating ideas and results

Quantitative observations

Observations that deal with numbers or measurements

Qualitative observations

Observations that do not use numbers or measurements (descriptions)

Another word for independent variable

manipulated variable

Another worrd for dependent variable

responding variable

DRY MIX-

dependent responding on y axis
manipulated independent on x axis

Independent variable

The variable that is changed

Dependent Variable

The variable that is expected to change because of the independent variable

constant variable

variables that are kept the same

Physical Science is divided into 2 categories-

physics and chemistry

Technology

a way of changing the natural world to meet human needs or solve problems

Scientific Law

a statement that describes what scientists expect to happen under a particular set of conditions

Scientific Theory

a well-tested explanation for a wide range of observations or experimental results

Controlled experiment

An investigation in which all variables except one remain the same

Why only one independent variable in an experiment?

To be able to determine if that specific variable was responsible for causing the change

Hypothesis

the possible answer to a scientific question or explanation for a set of observations

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