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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


an explanation of your observations based on prior knowledge


making a forecast of what will happen in the future based on past experience or evidence


the study of properties of matter and how matter changes


the study of matter and energy and how they interact


anything that has mass and takes up space


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)


Possible explanation for a set of observations or answer to a scientific question


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


a way of learning about the natural world

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