Scientists record experiments in trials.They repeat experiments over and over again so they can find averages.Also,experiments in different conditions,called varibles,could change.But the main reason is the outcome would change
donut
ERROR
redo
Experimental error.
Error
error
Error
Well, they could but they shouldn't because they will do something wrong !!! And if it doesnt fit there hypothesis they need to try the experiment again until it fits there hypthesis !!! That would be my solution !!!
to keep track of an experiment
Scientists often re-do experiments to exclude the chance of an ERROR.
Well, you're going to need the right things and also you need to have experience if you are going to design an experiment.
redo or retest the experiment