How Science Works Flashcards
what do you do in the aim
ask a question
identify a problem
formulate an aim
what do you do in the hypothesis
research what is known already
formulate a hypothesis
what do you do in the plan
plan experiment/observation
materials, method, variable, controls
what do you do in the data
carry out experiment / make observations record data (table)
what do you do in the analysis
display data (graph) analyse data
what do you do in the conclusion
interpret results
write a conclusion
compare to hypothesis
report results
independent variable
the variable that you change in an experiment
dependent variable
the variable that is measured (observed)
control variable
the variable that you keep the same in an experiment
categorical variable
non-numerical variable
discrete variable
the numerical variable a whole number values
continuos variable
numerical variable that can be any value
fair test / valid
when there is only one independent variable (all of other variables are kept constant, so they don’t affect the experiment (= control variables)
which variable is colour
categoric
which variable is height
continuos
which variable is age
continuos
which variable is number of children
discrete
which variable is left/right handed
categoric
which variable is leg number
discrete
for making tables, which variable goes in the left column?
independent variable
for making tables, which variable goes in the right column?
dependent variable
when calculating the mean do you include or exclude anomalies?
exclude
when drawing graphs, do you use a bar or line graph for a categorical variable?
bar graph
when drawing graphs, do you use a bar or line graph for a discrete variable?
bar graph
