Random One
The internationally accepted system for measurement is called the _________ system.
Metric
A scientific experiment must have all of the following: A dependent variable, one or more independent variables, controlled variables, and the ability to be replicated. TRUE OR FALSE
FALSE
If I change A and measure B, which is the dependent variable, A or B?
B
A factor that can be changed or varied.
Variable
Grouping together items that are alike in some way.
Classification
Able to be reproduced or repeated.
Replicable
Has one independent variable, one or more dependent variables, controlled variables, and is replicable.
A controlled scientific experiment
An explanation of what you observe.
Inference
An activity that is planned and designed to test a hypothesis.
Experiment
An educated guess about a problem that could be tested.
Hypothesis
Why do scientists control some variables in an experiment?
So they don’t have an affect on the variable being measured (the DV).
An explanation of how or why nature works.
Scientific theory
The information gathered during an experiment or while making observations.
Data
An observation that involves numbers or amounts.
The one factor changed by the person doing an experiment.
Independent variable
How does ___________ affect ___________?
How does IV affect DV?
Using one or more of your five senses to gather information.
Observation
Why should scientific investigations be replicable?
So they can be confirmed by other scientists.
An acronym used to help us remember how to graph the results from our experiment.
DRY MIX
A description of what happens in nature under certain circumstances.
Scientific law
Creating representations of complex objects or processes.
Modeling
The factor being measured in an experiment.
Dependent variable
An observation that describes something using adjectives and that cannot be expressed with numbers.
Qualitative observation
Making a forecast on what will or may occur in the future based on past observations.
Prediction
All the factors staying the same in an experiment.
Controlled variables