SCIENTIFIC METHOD A WAY TO SOLVE A PROBLEM

SCIENTIFIC METHOD SERIES OF STEPS THAT A SCIENTIST WILL USE TO SOLVE A PROBLEM.

STEPS OF SCIENTIFIC METHOD 1.DETERMINE THE PROBLEM– WHAT ARE YOU STUDYING? 2.GATHER INFORMATION – USE SENSES, RESEARCH MATERIALS 3.FORM A HYPOTHESIS – AN IDEA OR EXPLANANTION THAT IS BASED ON OBSERVATIONS & THAT CAN BE TESTED.

SCIENTIFIC METHOD 4.EXPERIMENT – TEST HYPOTHESIS— CONTROLLED EXPERIMENT 5.RECORD & ANALYZE– COLLECT DATA 6.CONCLUSION – IS HYPOTHESIS CORRECT OR NOT?

CONTROLLED EXPERIMENT AN EXPERIMENT IN WHICH ALL CONDITIONS ARE THE SAME EXCEPT FOR THE ONE BEING TESTED.

VARIABLES INDEPENDENT VARIABLE – FACTOR BEING TESTED IN THE EXPERIMENT (X –AXIS) DEPENDENT VARIABLE– RESULTS FROM CHANGE (Y-AXIS)

CONTROL-- STANDARD FOR COMPARISON GROUP GIVEN NO TREATMENT CONSTANTS PARTS OF THE EXPERIMENT THAT ARE KEPT THE SAME EX: LIGHT, WATER, SOIL, PLANT

LACK OF VIT. A IN DIET WILL CAUSE LIVER CANCER IN RATS GROUP A – CONTROL GROUP RATS (12) WATER AIR LIGHT REGULAR DIET GROUP B- EXPERIMENTAL GROUP RATS (12) WATER AIR LIGHT DIET LACKS VIT. A

DATA INFORMATION COLLECTED IN AN EXPERIMENT – RESULTS NUMERICAL – MEASUREMENTS, COUNTS VERBAL – USING WORDS TO DESCRIBE OBSERVATIONS.

ANALYZE RESULTS DO THE RESULTS SUPPORT THE HYPOTHESIS? WHAT TO DO NEXT?