AP Science Laboratory Curriculum
St. Ignatius College Preparatory

Enduring Understandings
 
Essential Questions
 
 
Course Outcomes
  

 

 

 

 

 
Acceptable Evidence / Performance Tasks
 


 

 

 
 
 
Laboratories and Projects

 

 

 

 
Lab Exercise
Description
Goal
Time
Inquiry

Student Inquiry Project

Students select and investigate a topic of their choice in which they ask and answer a testable question using an experimental, well-designed investigation.
Demonstrate the skills and process of conducting a well-designed experimental investigation, and develop a deeper understanding to a topic of interest, selected by the student.
3 weeks
Student-conducted
Identification of Substances by Physical Properties
Students determine the physical properties (density, melting point, boiling point, solubility) of a solid and liquid unknown, and then identify it from a list of substances and their properties.
Learn procedures to evaluate physical properties, and use them to identify substances.
2.5 hrs
Student-conducted
Separation of the Components of a Mixture
Students are given a mixture of NaCl, NH4Cl and SiO2 and separate them by heating, subliming, extraction and drying, and determine the % of each.
Learn the separation techniques of decantation, extraction and sublimation.
2.5 hrs
Student-conducted
Chemical Reactions
Students investigate the reaction between Cu and S, an oxidation-reduction reaction (Zn, HCl), and a metathesis reaction (Na2CO3, HCl).
Observe typical chemical reactions, identify products, and summarize chemical changes using balanced chemical equations.
2.5 hrs
Student-conducted
Chemical Formulas
Students react Zn in HCl, mass the product and determine the balanced chemical equation.  Students repeat a similar process for Cu and S.
Become familiar with chemical formulas and how they are determined.
2.5 hrs
Student-conducted
Chemical Reactions of Copper and Percent Yield
Students use Zn or Al to reduce Cu from solution and determine % yield.
Determine the % yield of a copper reaction.
2 hrs
Student-conducted
*Gravimetric Analysis of a Fertilizer
Students use gravimetric analysis to determine % Cl in AgCl.
Learn typical techniques of gravimetric analysis by quantitatively determining Cl in an unknown.
3 hrs
Student-conducted
Hot/Cold Pack
Students construct a cold/hot pack and determine how much heat is loss or gained.
Measure energy changes of endothermic or exothermic reactions using a calorimeter.
2.5 hrs
Student-conducted
Molecular Geometries of Covalent Molecules: Lewis Structures and VSEPR Theory
Students make models of covalent molecules, deduce whether geometrical isomers are possible, predict ion structure, state the hybridization of central atoms, and suggest how given species would distort from regular geometries.
Become familiar with Lewis structures, principles of VSEPR theory, and 3-D structures of covalent molecules.
2.5 hrs
Student-conducted
 
 
 
 
 
 
 
 
 
 
Colligative Properties: Freezing-Point Depression and Molar Mass
Students observe and record the cooling curve for naphthalene and a naphthalene-sulfur mix.  They then determine the molar mass of S and repeat the process to determine the molar mass of an unknown substance.
Observe colligative properties and use them to determine the molar mass of a substance.
2.5 hrs
Student-conducted
 
 
 
 
 
Rates of Chemical Reactions II: Rate and Order of H2O2 Decomposition
Students investigate the effects of temperature and a catalyst on the rate and order of reaction for the decomposition of H2O2.
Determine the rate and order of reaction for the decomposition of H2O2.
2.5 hrs
Student-conducted
Reactions of Aqueous Solutions: Metathesis Reactions and Net Ionic Equations
Students mix a variety of solutions to observe metathesis reactions.  They then use solubility, temperature and crystallization data to determine products and write molecular, complete ionic and net ionic equations.
Observe metathesis reactions and write their net ionic equations.
2.5 hrs
Student-conducted
 
 
 
 
 
Determination of Dissociation Constant of a Weak Acid
Students observe and record pH during a titration, create a titration curve of pH versus mL titrant to calculate the ionization constant.
Operate a pH meter, and understand quantitative equilibrium constants.
3 hrs
Student-conducted
Introduction to Qualitative Analysis
Students perform basic qualitative analysis techniques of the sulfuric acid test and specific test for anions of know anions, and then identify the anion of a solid salt unknown.
Learn the basic principles of qualitative analysis and the chemistry of several elements.
3 hrs
Student-conducted
Titration of Acids and Bases
Students will standardize a NaOH solution and use this to determine the amount of acid in an unknown solution.
Practice the techniques of titration, and determine the amount of acid in an unknown.
3 hrs
Student-conducted
Hydrolysis of Salts and pH of Buffer Solutions
Students investigate the hydrolysis of salts by measuring pH, determining [H+] and [OH-], and calculate Ka or Kb.  They then measure and observe the effect of acid and base on buffer pH.
Learn about hydrolysis and the behavior of indicators and buffer solutions.
3 hrs
Student-conducted
Le Chatelier’s Principle
Students will disturb different equilibrium systems to observe the effects based on Le Chatelier’s Principle.
Learn and predict the basic effects of disturbing an equilibrium reaction based on Le Chatelier’s Principle.
2.5 hrs
Student-conducted
 
 
 
 
 
 
Electrochemical Cells and Thermodynamics
Students construct electrochemical cells and measure their potential at various temperatures.  Students then calculate ∆G, ∆H, and ∆S from the temperature variations of the measured emf.
Become familiar with the fundamentals of electrochemistry and the Nernst equation, by constructing voltaic cells.
3 hrs
Student-conducted
Activity Series
Students compare the reactions of Ca, Cu, Fe, Mg, Sn, and Zn in HCL.  Students then compare the reactions of Ca and Cu to metal-cation solutions.  This information is used to rank order the relative chemical reactivities of the tested metals.
Determine the relative activities of metals in chemical reactions.
2.5 hrs
Student-conducted
Colorimetric Determination of Iron
Students use a spectrophotometer, and observed absorbance and calibration curves to calculate the mass and % of iron in a sample.
Become familiar with the principles of colorimetric analysis.
3 hrs
Student-conducted
Preparation of Ester
Students use laboratory techniques in the synthesis of different ester compounds.
Synthesize organic compounds.
2.5 hrs
Student-conducted
 
 
 
 
 
Preparation and Reactions of Coordination Compounds: Oxalate Complexes
Students prepare representative coordinate compounds and observe their typical reactions.
Become familiar with coordinate compounds.
3 hrs
Student-conducted

 

 

Use of Class Time
 
 
Bibliography
 
 
 
 
 
Department Mission


 

Our mission is to teach students the scientific method so they can understand modern scientific descriptions of the universe and come to objective conclusions about the natural world. Like all members of the SI community we aim to educate the whole person, emphasizing the academic, extracurricular, and spiritual development of our students.

 

We would like to see graduates of SI ...

 
●    knowledgeable about a broad range of scientific topics
    confident and proficient in the use of the scientific method
●    able to use core science knowledge to assimilate new ideas and discoveries
    aware and appreciative of the universe and its inhabitants
●    able to effectively communicate scientific principles, theories, and historical discoveries in both qualitative and quantitative language
●    proficient in laboratory techniques and experimental apparatus
●    conscious of the environmental and ethical consequences of scientific progress
    dedicated to acting as a "person for others" in accordance with Catholic faith, Jesuit tradition and our school's mission
●    well prepared for future study in any academic discipline
 
... and eager to continue to enjoy, learn about, and practice science throughout their life.

 

To this end, we strongly advise students to take all three of our core classes (Biology, Chemistry, and Physics) as well as a 4th year elective course.

 
 
 
 
 
Summer Curriculum Grant Proposal
 

Introduction

 

Beginning this Fall, 2009, students enrolling in an AP Science course will also be automatically enrolled in a second course, AP Science Laboratory. The course catalog description is as follows:

 

 

ADVANCED PLACEMENT SCIENCE LABORATORY

 
Grade Level - 10, 11, 12
Length - One Year
Type of Course – Elective (half-credit)
Prerequisite – Concurrent enrollment in AP Biology, AP Chemistry, or AP Physics
Criteria for Enrollment – Students who qualify for and enroll in the AP Science courses listed above are required to enroll in this course as well
Course Description – AP Science courses such as AP Biology, AP Chemistry, and AP Physics require an intensive laboratory component extending beyond the regular class meetings. Students enrolled in this class will meet at least once, and at most twice, per week with their class either at zero period or at 8th period. When the corresponding AP Science course is scheduled, zero and 8th period meeting times for this course will be scheduled so that 100-minute “double periods” are created before and after school. Students need only meet before or after school, not both. Students receive a separate grade for the laboratory course.

 

This course brings our AP courses into accordance with the  College Board’s recommendations regarding time spent in lab (per the AP Audit). This is the first year that we will have access to a formal double period; in past years, students have been informally required to attend lunch-time labs.In order to recognize the extra time and work put in by students, a separate half-credit lab grade is offered. Currently, lab grades make up just a part of the overall course grade. Withlab a separate grade, it is important to determine - through backwards design - appropriate curricular goals, student expectations, and grading criteria.Although we meet as a level regularly during the school year, due to the busy nature of the AP sciences it is hard to find time to collaborate on such a broad project.

 

Purpose
 
 
Clarify and codify our lab curricula for AP Biology, AP Chemistry, and AP Physics. In particular, we will:
 
 
Identify enduring understandings, essential questions, course outcomes, breadth of topics, depth of study, and overall standards associated with laboratory work.
 
Determine what we will accept from students as evidence that they have met these goals; review our methods and breadth of assessments
 
Identify other, new activities that reinforce these goals
 
Determine how the extra time will be utilized for the AP science courses
 
 
Clearly identifying in each of our specialized curricula what the extra time will be used for and what the AP Lab grade will consist of; allowing AP science students to see a commonality in expectations among the AP Science courses.
 
Create documentation that effectively communicates to new teacher, veteran teachers, student, administrators, regents, trustees, parents, and other stakeholders (i) what we are doing; (ii) how we are doing it; and (iii) how we can make sure what we are doing is effective
 
Build collegiality, a sense of common purpose, and a solid AP Science Laboratory expectation in our disparate topics (AP Biology, AP Chemistry, and AP Physics)
 
Continue to develop a AP Vertical Teaming framework amongst the AP sciences
 
Need
 
This work differs from the usual curriculum review we all do as professionals in the following ways:
 
 
It takes some existing curriculum and some new curriculum and conforms it to the UbD framework
 
It consists of three separate curricula designed in parallel with common and distinct parts
 
It will consist of a lab curricula that shares commonality across three distinct disciplines of science, each with its own very different laboratory experience

 

 

Outcomes & Deliverables – Summer 2009

 

Before the start of the 2009-2010 school year, we will deliver:

 

Online, written, backwards-designed, common curricula for the AP Science Labs. These curricula will include all of the following pieces:
 
 
Course-wide topics for enduring understanding *****
 
Course-wide essential questions *****
 
A course-wide list of topics for each course *****
 
Application of each of the above to each individual class *****
 
Included in the common curricula
 
 
Topics of enduring understanding 
 
Essential questions
 
Outcomes in terms of applicable knowledge and skills *****
 
Outcomes in terms of fundamental understanding *****
 
Clear explanation of the flexibility of the Lab curricula, allowing it to be used across the entire AP level 
 
A set of performance/assessment tasks that can be shared as a common resource *****
 
A bibliography with references to educational research & strategies as they impact the design of the curricula*****
 
A set of common (but flexible) laboratory & scientific method rubrics and expectations *****
 
A set of new, additional assessments and performance tasks that will allow students to demonstrate understanding of laboratory skills and principles *****
 
A written plan for the additional class time that was approved for the AP Sciences; specifically indicating how the new class time will reduce informal/outside of class time on major projects *****
 
A set of guidelines for assessing and grading based on the new laboratory curricula ******
 
 
A department feedback document, formulated at the end of the summer, which describes our satisfaction with the delivered work and our personal commitment to implementation of the results