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HOW SCIENTISTS WORK?

IDENTIFY THE PROBLEM

THE PROBLEM THAT IS GOING TO PRESENT MUST BE IDENTIFIED AND ANALYZED.

FORMULATE HYPOTHESIS

PEOPLE ACCEPTED THE PREVAILING EXPLANATION FOR THE SUDDEN APPEARANCE OF SOME ORGANISMS, WHICH SOMEHOW "AROSE" FROM INERT MATTER. WORMS AROSE FROM MEAT, MICE FROM GRAIN, AND DUNG BEETLES

CHECK HYPOTHESIS TO CARRY OUT EXPERIMENT

REDI MADE A PREDICTION THAT KEEPING FLIES AWAY FROM MEAT WOULD PREVENT WORMS FROM APPEARING. TO TEST THIS HYPOTHESIS, HE PLANNED THE EXPERIMENT THAT REDI CONTROLLED FOR ALL VARIABLES EXCEPT ONE, WHETHER THERE WAS GAUZE ON EACH JAR OR NOT. THE GAUZE WAS IMPORTANT BECAUSE IT KEPT THE FLIES OFF THE MEAT.