Physical Science Chapter 1 Section 1 Vocab

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23 terms

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

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