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01.03 chemisrty .pdf

# 01.03 chemisrty .pdf - Part One Scenario 4 1 Identify the...

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Unformatted text preview: Part​ ​One:​ ​Scenario​ ​4: 1.​ ​Identify​ ​the​ ​independent​ ​and​ ​dependent​ ​variables​ ​in​ ​Carmen’s experiment.​ ​The​ ​amount​ ​salt​ ​added​ ​to​ ​the​ ​water,​ ​and​ ​the​ ​time​ ​allowed​ ​for​ ​it to​ ​freeze​ ​in​ ​the​ ​freezer​ ​would​ ​be​ ​considered​ ​Carmen’s​ ​independent variables.​ ​Carmen’s​ ​experiment​ ​contained​ ​dependent​ ​variables​ ​which​ ​was the​ ​salt​ ​water​ ​freezing​ ​and​ ​the​ ​time​ ​that​ ​it​ ​took​ ​the​ ​salt​ ​water​ ​to​ ​freeze. ​ ​2.​ ​Do​ ​the​ ​experiment​ ​and​ ​results​ ​support​ ​the​ ​hypothesis​ ​as​ ​it​ ​was​ ​written? Explain​ ​your​ ​answer.​ ​The​ ​outcome​ ​of​ ​the​ ​experiment​ ​did​ ​not​ ​support​ ​the hypothesis​ ​as​ ​written.​ ​Carmen’s​ ​educated​ ​guess​ ​was​ ​that​ ​the​ ​greater​ ​the amount​ ​of​ ​salt​ ​that​ ​was​ ​dissolved​ ​in​ ​the​ ​water​ ​the​ ​less​ ​time​ ​it​ ​would​ ​take​ ​for the​ ​water​ ​to​ ​freeze.​ ​The​ ​results​ ​were​ ​opposite​ ​of​ ​the​ ​hypothesis.​ ​Therefore, the​ ​results​ ​did​ ​not​ ​support​ ​her​ ​hypothesis. 3.​ ​Identify​ ​some​ ​specific​ ​changes​ ​that​ ​you​ ​would​ ​suggest​ ​for​ ​Carmen’s experiment​ ​in​ ​order​ ​to​ ​specifically​ ​test​ ​her​ ​hypothesis.​ ​Give​ ​a​ ​specific explanation​ ​for​ ​why​ ​these​ ​changes​ ​are​ ​improvements.​ ​One​ ​suggestion would​ ​be​ ​for​ ​Carmen​ ​to​ ​possibly​ ​add​ ​less​ ​salt​ ​more​ ​times​ ​equaling​ ​up​ ​to the​ ​5.0​ ​grams​ ​or​ ​maybe​ ​even​ ​higher.​ ​This​ ​way​ ​I​ ​think​ ​her​ ​experiment​ ​would more​ ​accurate​ ​and​ ​exact. Part​ ​Two Purpose-​ ​I​ ​want​ ​to​ ​find​ ​out​ ​which​ ​dish​ ​washer​ ​soap​ ​cleans​ ​best. Hypothesis-​ ​I'll​ ​have​ ​to​ ​guess​ ​which​ ​soap​ ​will​ ​do​ ​the​ ​best. Analysis-​ ​I​ ​will​ ​create​ ​a​ ​chart​ ​that​ ​shows​ ​the​ ​amount​ ​of​ ​time​ ​I​ ​have​ ​used​ ​the soap​ ​and​ ​how​ ​efficient​ ​it​ ​is. Variables dependent​ ​variable The​ ​dependent​ ​variable​ ​would​ ​be​ ​the​ ​speed​ ​in​ ​which​ ​the​ ​plant​ ​grows. independent​ ​variable The​ ​independent​ ​variable​ ​is​ ​at​ ​what​ ​time​ ​the​ ​plant​ ​is​ ​watered​ ​. Control​ ​1 Must​ ​have​ ​the​ ​same​ ​exact​ ​plant​ ​no​ ​mix​ ​of​ ​plants. Control​ ​2 The​ ​amount​ ​of​ ​water​ ​is​ ​very​ ​important.​ ​So​ ​make​ ​sure​ ​to​ ​measure​ ​the water. Control​ ​3 A​ ​plant​ ​lay​ ​out​ ​or​ ​set​ ​up​ ​is​ ​controlled. Control​ ​4 Use​ ​the​ ​same​ ​soil​ ​for​ ​all​ ​the​ ​plants. Control​ ​5 The​ ​amount​ ​of​ ​room​ ​set​ ​for​ ​the​ ​plants​ ​growth. Research-​ ​I​ ​will​ ​have​ ​to​ ​look​ ​for​ ​info​ ​that​ ​tells​ ​me​ ​what​ ​the​ ​best​ ​dish washer​ ​soap​ ​is. Experiment-​ ​I'll​ ​be​ ​doing​ ​the​ ​experiment​ ​by​ ​running​ ​my​ ​dishwasher​ ​three times​ ​for​ ​each​ ​soap. Conclusion-​ ​I'll​ ​review​ ​all​ ​the​ ​data​ ​and​ ​see​ ​which​ ​dish​ ​washer​ ​soap works​ ​the​ ​best. ...
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• Fall '16
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