Explanation
This is a memory sentence to help you remember one common six-step formulation of the scientific method. Take the first letter of each word: Outstanding Hot Potatoes Tackle Creepy Cauliflower → O-H-P-T-C-C, standing for Observation, Hypothesis, Prediction, Testing, Controls, Conclusion.
Also see: Our Pizza Really Has Extra Awesome Cheese, for a different, seven-step version of the scientific method.