_______________________________________ GRADE 11 TEACHER: ______________________________ Date submitted: ____________
TOPIC 1: Stoichiometric Relationships
SUB TOPIC: Gas Laws
INVESTIGATION: Investigating the Relationship Between Pressure and Volume Using Data Loggers
The result for this Assessment Task will contribute to your A – E grade for the semester result in Chemistry. Completion and feedback also provides preparation for Internal Assessment (IA) Refer to assessment rubric and checklist provided.
This practical will be assessed on Design
1. Write all results in your Lab Book
2. Complete practical following Teacher Instructions provided (attached). 3. Complete Laboratory Report using assessment rubrics and checklist as a guide. 4. Attach these cover sheets to the front of your Laboratory Report. 5. Reference any materials used in the Laboratory Report.
Results are subject to moderation
Summary of Results
IA PRACTICAL/LABORATORY REPORT CHECKLIST
1. Keep each part of your report simple and to the point. Concise scientific information is what is required. Quantity does not equal quality. 2. Use sub-headings to allow the marker to find the aspects listed below. Exploration
Defining the Problem and Selecting Variables
Formulates a focused problem/research question
Creates background Information
Appropriate and relevant and enhances the understanding of the context of the investigation. Include referenced information
Hypothesis if….then… statement (with mathematical relationship). Included an explanation
Identifies relevant dependent (measured), independent (manipulated) and controlled (constant) variables. Preferably in tabulated form
Independent and dependent must be quantitative
Designs a method for the effective control of variables.
Method should include apparatus and materials, labeled diagram, safety precautions, ethical and environmental issues and detailed instructions on how the experiment is set up and carried out. Include all relevant procedures that allow another person to repeat your experiment exactly (Validity) Use numbered steps or bullet point.
Should include explicit reference to how the control of variables is achieved. In method, identify the steps where are controlling a variable mentioned in Aspect 1
Developing a Method* for Collection of Data
Repeating measurements for the collection of sufficient relevant data At least 3 repeats (state this in method)
Adequate amount of data
At least 5 different independent values (state these in method)
Adequate range of data collection
Your independent variables need to spread out
State any calculations that are needed to be performed (e.g. formulas)
IMPORTANT: There are many fine points to include here – but they are VERY important to get full marks! Don’t forget your error propagation
Recording Raw Data
Records quantitative raw data
Table (only data that you have collected).
Table arranged vertically (independent in first column)
Included column headings,
Units ( cm s-1 NOT cm/s) (in column headings)
No “( )” used (e.g. do not use (cm s-1) or (±0.004))....
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