Answer:
The correct answer would be - design and run some tests or experiments.
Step-by-step explanation:
The scientific method is an orderly or step by step process that helps in developing the knowledge about a particular scientific process. This process involves having a purpose, observe the characteristics, making a hypothesis with a possible explanation, designing a test or experiment for the hypothesis, analyzing the result or data, and making a conclusion.
In this experiment, the purpose, and observation of the already formulated so the next step would be designing a test and run the test to find the result or data for further investigation.