What is the scientific method and how is it used in science?
Used to solve a problem Organized & detailed so anyone can repeat and get same results 6 Steps
1. Question ◦ Use natural events to answer2. Make Observations ◦ Use prior knowledge ◦ Use 5 senses to collect information ◦ Research information Science book, or credible Internet journals or articles3. Hypothesis ◦ Educated guess to answer Step 1 with information from Step 2 ◦ “If…. then…” statement
4. Experiment ◦ Carried out under controlled conditions Control as much as possible to get accurate results ◦ Follows a detailed procedure ◦ Variables – factors that affect an experiment Independent variable –what you introduce to one group in the experiment Dependent variable – data collected ◦ Trials – each time you run the experiment
5. Data ◦ Collected during an experiment ◦ Shown in a data table and a graph6. Conclusion ◦ Restate the hypothesis and explain if you agree or disagree ◦ Must support with results from experiment
A highly tested hypothesis Must meet criteria: ◦ Hypothesis proves true multiple times ◦ Is tested by other scientists with similar results Ex) Theory of Evolution, Big Bang, Plate Tectonics
Proven theory Must meet criteria: ◦ Theory is HIGHLY tested by MANY scientists and is proven with same results Ex) Law of Gravity, Newton’s Laws of Motion