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Students Investigate The Efficiency With Which Developing Painted Lady Butterflies (Vanessa Cardui) Incorporate Their Food Into Their Body Mass. In This Lab, Painted Lady Larvae, Representing A Primary Consumer, Feed On A Growth Medium That Represents A Primary Producer. To Track The Amount Of Medium Consumed Over Time, Students Daily Measure And Record The Mass Of A Control Cup And A Cup Containing The Larvae Or Chrysalises. At The End Of The Experiment, Students Graph Their Data In Multiple Ways, Analyze The Results, And Calculate Efficiency. Kit Provides Materials For 15 Groups Of Students. Note: Kit Includes A Voucher To Request The Perishable Material Later At Your Convenience. Contact Or Return The Voucher To Request Delivery Of Perishables.Unit Connectionthis Laboratory Investigation Correlates To Unit 1: The Living World: Ecosystems, Topics 1.9: Trophic Levels And 1.10: Energy Flow And The 10% Rule In The Ap Environmental Science Course And Exam Description.Standards Connectionthis Kit Addresses The Following Ap Environmental Science Concepts:Big Idea 1: Energy Transfer (Eng) Energy Conversions Underlie All Ecological Processes. Energy Cannot Be Created; It Must Come From Somewhere. As Energy Flows Through Systems, At Step, More Of It Becomes Unusable.Eng-1 Energy Can Be Converted From One Form To Another.Eng-1.B Explain How Energy Flows And Matter Cycles Through Trophic Levels.Eng-1.B.3 In Terrestrial And Near-Surface Marine Communities, Energy Flows From The Sun To Producers In The Lowest Trophic Levels And Then Upward To Higher Trophic Levels.Eng-1.C Determine How The Energy Decreases As It Flows Through Ecosystems.Eng-1.C.1 The 10% Rule Approximates That In The Transfer Of Energy From One Trophic Level To The Next, Only About 10% Of The Energy Is Passed On.Eng-1.C.2 The Loss Of Energy That Occurs When Energy Moves From Lower To Higher Trophic Levels Can Be Explained Through The Laws Of Thermodynamics.Time Requirementster Preparation (Before Class):Prelab: 60 Minutesinvestigation: 60 Minutesclass Time:Prelab: 45 Minutesinvestigation: Day 1, 45 Minutes; Daily Measurements And Observations, 5–10 Minutes; Final Lab Day, 45 Minutesfree-Response Questions: 60 Minutesthe Times Provided Are Estimates. The Time Required May Vary Based On Your Student Population.Digital Resourcesincludes 1-Year Access To Digital Resources That Support Instruction. Digital Resources May Include Ter Manual And Student Guide, Prelab Activities And Setup Videos, Simulations, And Postlab Analysis And Assessments.Prior Knowledge And Skillsstudents Should Be Familiar With The Following Skills Or Concepts:Accurately Using A Scalegraphingtrophic Levels And Energy Transfer Within Ecosystemsthe Construction And Understanding Of Food Chains And Food Websap Is A Trademark Registered And/Or Owned By The College Board, Which Was Not Involved In The Production Of, And Does Not Endorse, This Product.
