Everything from spiders to poisoned water to flies to mushrooms to a plant were suggested. Anna Pierce, a pioneer physician in Illinois, was the first to convincingly hypothesize that white snakeroot caused milk sickness. D. Collecting evidence. A good experiment should be able to be repeated by another scientist. In this case, John Roe, and Ohio farmer repeated Pierce's observation.
White snakeroot causes trembles and ultimately milk sickness.
They made observations, developed a hypothesis, tested the hypothesis by collecting data, and confirmed the hypothesis with additional experiments. Case Study - Frog and Toad in the Garden. We will see if you can determine the pattern that I arrange in a deck of playing cards. This exercise should focus on concepts of falsifiability, certainty, proof, alternate hypotheses, laws and biology. This story is included because it demonstrates nicely how scientists can study past events.