2.1 review

Chapter 2.1 review   Please bring dice on Wednesday, in a bag with your name inside.   7 steps of  the scientific method Observation – notice with your senses, why are we interested in the topic? Hypothesis – prediction that can be tested by experimentation Experiment – procedure used to test a hypothesis, steps taken Results – experimental observations Data – information gathered during an experimtent Analysis -- Conclusions – what you learned fro the experiment. Was your hypothesis accepted or rejected? Repeat Report – to share your results with others. Lab report or presentation.            Habits of a scientific mind:\   Imagination – ability to conceive of new ideas, creativity Curiosity – wonder about things, how things work Skepticism – do not believe everything you are told Openness to new ideas     Control group – the group that does not receive the treatment Experimental group – the group that has the variable Variable – the factor of interest in an experiment     Correlations – scientists use this to test predictions when it is impossible or unethical to test directly   Ideas for experiment Worms Coin flipping Rolling dice – craps, gambling, set up so house wins With 2 (6 sided) dice, what is the chance of rolling a 2,3,4,5,6,7,8,9,10,11,or 12 Observations – describe the dice, is there an equal chance of landing on any side? Hypothesis – pick a number between 1 and 13 and using logic, make a prediction about what percentage of the time you will get a sum of that number when you roll your two dice. How many ways can you role your sum. Experiment – design an experimental plan, write your plans in numbered steps. How will you record your results? Execute the experiment (do the experiment) Record your results and any relevant observations. Analysis – what does your data mean? Explain any calculations you make. Conclusions – What was the measured percentage that you actually came up with? Is this different than your hypothesis? Is it close to your hypothesis or not? Based on the results, do you accept or reject your hyothesis? Repeat – could anything be gained by repeating the experiment? Would you do anything differently? Are there any modifications or related experiments that you can think of that would be interesting? Report – write a lab report. This should contain 6 sections corresponding to each of the above parts of the scientific method. Each section should be in paragraph format with complete sentences. The one exception to this rule is the experimental section which can have the steps listed in order.