Flashcards in How Science Works Deck (40)
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
(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)
what do you do in the conclusion
write a conclusion
compare to hypothesis
the variable that you change in an experiment
the variable that is measured (observed)
the variable that you keep the same in an experiment
the numerical variable a whole number values
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
which variable is height
which variable is age
which variable is number of children
which variable is left/right handed
which variable is leg number
for making tables, which variable goes in the left column?
for making tables, which variable goes in the right column?
when calculating the mean do you include or exclude anomalies?
when drawing graphs, do you use a bar or line graph for a categorical variable?
when drawing graphs, do you use a bar or line graph for a discrete variable?
when drawing graphs, do you use a bar or line graph for a continuos variable?
when drawing a graph, which variable goes on the x axis
when drawing a graph, which variable goes on the y axis
with the dependent variable, which value do you only plot on the graph
the mean value
on a bar graph, you should have ... widths of columns