Customizable Design of Experiments Project Ideas for High School: Moldy Bread
Bu hikaye tablosunu aşağıdaki makalelerde ve kaynaklarda bulabilirsiniz:
Deneysel Tasarım Sanatını Keşfetmek: Öğrenciler ve Eğitimciler İçin Adım Adım Kılavuz
Oliver Smith Tarafından
Deneysel tasarımı öğretmek ve öğrencilerin kendi sorularını ve hipotezlerini geliştirmelerine izin vermek zaman alır. Bu materyaller, öğretmenlerin deneysel tasarımdaki temel fikirleri geliştirmeye odaklanmalarını sağlamak için süreci desteklemek ve yapılandırmak için oluşturulmuştur.
Diğer eğitim makalelerimizden bazılarına göz atın!
Öykü Açıklama
Experimental Design - completed planning worksheet
Öykü Penceresi Metni
- Question-Whatdoyouwanttofindout?
- ExplanationofHypothesis
- Howdoestemperatureaffectmoldgrowthonbread?
- Moldisalivingorganism.Thechemicalreactionsthatkeepthemold aliveareaffectedbytemperature.Whenweincreasethetemperature, thespeedofthesechemicalreactionsincreases.Therefore,ifwe increasethetemperature,moremoldshouldgrowonthebread.
- Hypothesis
- Prediction
- IfIincreasethetemperature,thenmoldwillgrowmore quicklyonthebread.
- Thepieceofbreadkeptinthewarmestlocationwill havethemostmoldgrowth.
- IndependentVariable
- Whatisyourrange?Howmanytimeswillyourepeatthetest?
- Thetemperatureofstoragespace
- Therewillbe2differenttemperatures: Refrigeratortemperature40°F(4°C) Roomtemperature73°F(23°C). Iwillrepeattheexperiment3timesateach temperature.
- Howwillyoumeasureyourdependentvariable?
- DependentVariable
- Theamountofmoldonthebread
- UsingatransparentgridIwillcalculatethe areaofthebreadwhichiscoveredinmold.
- ControlledVariables
- Howwillyoukeepthemconstant?
- 1.Amountoflight 2.Exposuretoair 3.Typeofbread 4.Sizeofbreadslice
- 1.Allthebreadsliceswillbeputinpaperbagsso theyareallinthedark. 2.Allthebreadsliceswillbeputinplasticbags. 3.Allthebreadsliceswillbetakenfromthesame loaf. 4.Breadsliceswillbechosenthatarethesamesize.
- Riskasssessment
- Howcantheserisksbemanaged?
- Youcouldhaveanallergicreactiontomold. Youcouldinhalethemold.
- Ifyouareallergictomolddon'ttakepartin theexperiment. Donotopenthebagsattheendofthe experimentanddisposeofthemcarefully.
- Diagram
- Materials-Whatdoyouneedto completethisexperiment?Why?
- •6slicesofbreadthatarethesamesize •Arefrigerator-keptataconstanttemperature •Awarmplace-keptataconstanttemperature •6plasticbags-tokeepthebreadinandstopthe moldgettingout •6paperbags-tokeepthesunlightout •Aruler-tomeasurethemoldspots •Atransparentgrid-tohelpworkouttheareaof breadthatiscoveredinmold •Amarker-tolabelthebags
- Plan-Howareyougoingtocarryitoutsafely?
- 1.Usethemarkerpentolabelthe6bagssotheycanbeidentifiedeasilylater.Placeasliceof breadineachbag. 2.Putthebagsinsidepaperbagsandput3intothefridgeand3inacloset. 3.Leavethebagsfor2days. 4.Checkthebagseverydayandrecordhowmuchofthesurfaceareaiscoveredinmold.This canbedoneusingatransparentgrid. 5.Recordyourresultsinatable. 6.Donotopenthebagsanddisposeofthemcarefullyintothetrash.
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