Central Dauphin School District



Name:________________________________Date:___________________Scientific Method Test Study GuideDefine the following terms:Scientific method: Is an organized set of investigation procedures.Independent variable: What we are changing in the experiment.Dependent variable: What we are measuring in the experiment.Testable question: is a question that will allow you to set up an experiment to learn an answer.Hypothesis: is an educated guess based on knowledge and observation.Constant: is a variable that does not change when other variables change.Application: Marcie is trying a new cookie recipe. She wants to see if the amount of baking powder she uses will make the cookies rise more. She makes three batches of cookies and changes the amount of baking powder for each batch.What is the independent variable? The amount of baking powder that she uses.What is the dependent variable? How high the cookies rise.What are 2 things that must remain constant for this experiment? Temperature of oven, other ingredients that are added must be the same.Write a testable question for this experiment. What does the effect of the amount of baking powder have on how high cookies will rise when baked?Write a hypothesis for this experiment. If more baking powder is added to the recipe, then the cookies will rise higher because baking powder is used to help cookies rise.Short Answer:List the steps to the scientific method. State the problem (testable question)Gather information/ResearchForm a hypothesisTest your hypothesis, conduct the experimentAnalyze the data collectedDraw conclusionsApplication: Match the letter to the correct step of the scientific method.Adding calcium and magnesium to the animal food did increase the animal’s growth. The hypothesis is supported.Procedure:Locate 2 puppies from the same litter that are similar in size.Feed one animal food with minerals for 1 month.Feed the other animal food without minerals for 1 month.Calculate the average growth of each puppy.If small doses of calcium and magnesium are added to animal food, then the animal’s growth will increase because calcium and magnesium are important minerals for growing.Average growth over 1 month periodFood with minerals10% growth increaseFood without minerals5% growth increaseDoes adding minerals to an animal’s food affect their growth?Notes: (WebMD)Calcium is essential for bone growthMagnesium is important for more than 300 chemical reactions in the body that keep it working properly (about ? of magnesium in body is found in bones)___E__Ask a testable question___F__Gather information/Research__C__Form a hypothesis___B___Conduct an experiment___D___Analyze the results___A___Draw conclusionsDetermine the best example of a hypothesis:If I add 5 hour energy to my breakfast, then I might go crazy during school.I think that energy will help me stay awake in class. They say it has caffeine so it might keep me awake.If I add 5 hour energy to my breakfast routine, then my heart rate will increase because 5 hour energy is full of caffeine. (Correct)Which of the following is the best example of a testable question:What kind of food does a plant need to grow?Does the amount of light a plant gets affect its growth? (Correct)How does light help a plant grow?Why are plants green?True or False?____T____Testable questions contain a cause and effect relationship.____F____Most people use the scientific method in their everyday lives.____F____The purpose of an experiment is to prove the hypothesis true.____F____There should only be two independent variables in an experiment.____T____A scientist examining the area and mold spores are collected is qualitative data.The scientific method in our everyday lives: Reflect on how people use the scientific method in their everyday lives. Create a scenario or scene where a non-scientist is applying the scientific method in an everyday situation. Be sure to explain the situation clearly, identifying all of the steps of the scientific method.1.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________2.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________3.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________4.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________5.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________6.________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ ................
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