Answer:Step 1: Identify the MaterialDetermine the type of material that underwent melting (e.g., ice, metal, wax).Step 2: Observe the ConditionsNote the environmental conditions during the melting process, such as temperature, pressure, and presence of any catalysts.Step 3: Hypothesize the Cause of MeltingBased on the material and conditions, hypothesize the cause of melting. Commoncauses include heat exposure, chemical reactions, or phase transitions.Step 4: Document ObservationsRecord any visual or physical changes observed during the melting process, such as color change, odor, or release of gases.Step 5: Analyze the HypothesisReview the hypothesis in light of the observations and adjust if necessary.Consider whether the melting was due to a physical change (like ice melting) or a chemical change (like a metal reacting with an acid).Final AnswerThe hypothesis on how melting happened should be based on the specific material and conditions observed. For example, if ice melted, the hypothesis might be that it was due to exposure to room temperature. If a metal melted, it could be due to high heat from a furnace or a chemical reaction. The hypothesis should be supported by the documented observations and analysis.