Scientific method Flashcards
What is the first step of the scientific method?
Making observations
This involves noting apparent patterns in the world around us, usually leading to a question.
What is a hypothesis?
A suggested explanation that can be tested
Hypotheses are formulated based on observations.
What is the purpose of conducting experiments in the scientific method?
To determine if there is sufficient evidence to support the hypothesis or reject/revise it
Experiments help validate or invalidate the hypothesis.
What happens after analyzing the results from an experiment?
Draw conclusions and make revisions
There are no ‘wrong answers’ in this process; it is about learning from data.
What is a variable in a scientific experiment?
Part of the experiment that is subject to change
Variables can be independent (cause) or dependent (effect).
What is the difference between an experimental group and a control group?
Experimental group is given treatment; control group receives no treatment (placebo)
Differences in outcomes between these groups are attributed to the variable being tested.
What makes a scientific experiment powerful?
The ability to control variables
This control makes results easier to interpret.
What defines a scientific theory?
It has been repeatedly tested and no experimental results have contradicted it
Scientific theories are well-supported explanations in science.
Fill in the blank: A well-designed scientific experiment includes independent and _______ variables.
dependent
Independent variables are the causes, while dependent variables are the effects.
What are the steps of the scientific method?
Making observations
Formulating a hypothesis
Devising a testable prediction
Conducting experiments
Drawing conclusions and making revisions