Bio 504 Name:

Formal Lab Assignment

CELERY LAB

Statement of Inquiry: Changes in environmental conditions have consequences on organisms.

Global Context: Scientific and Technical Innovations

Key Concept: Change

Related Concept: Consequences, Environment, Movement

Aim: To design a controlled experiment that will allow you to determine how the mass of a piece of celery will change after it has been placed in salt water for 24h.

Requirements:

1-  In pairs, you will prepare a lab report that shows your understanding of the scientific method. The report must include the following parts:

- Aim, hypothesis, materials, procedure (include variables), results, conclusion.

2- The materials you request will be made available to you … no extra materials will be

given - so think wisely.

3- You will be evaluated using the rubric provided. Use it!

The rubric must be stapled at the end of your lab report.

Deadlines:

Assigned: ______

Due: ______

Est. time: 3-4 hours

Assessment:

MELS: C1

I.B.O.: Criterion B, C

Achievement / 0 / 1 / 2 / 3 / 4 / 5 / 6 / 7 / 8
Mark % / 0 / 35 / 50 / 60 / 68 / 76 / 84 / 92 / 100

Name: ______

GUIDE TO EVALUATION – CELERY LAB

Criteria / Value
0 / 1-2 / 3-4 / 5-6 / 7-8
B / i- explanation of problem / standard not reached / I state a problem or question to be tested by a scientific investigation / I outline a problem or question to be tested by a scientific investigation / I describe a problem or question to be tested by a scientific investigation / I explain a problem or question to be tested by a scientific investigation
ii- formulation of hypothesis and explanation / standard not reached / I outline a testable hypothesis. / I formulate a testable hypothesis using scientific reasoning. / I formulate and explain a testable hypothesis using scientific reasoning. / I formulate and explain a testable hypothesis using correct scientific reasoning.
iii- manipulation of variables and explanation of data collection / standard not reached / I outline the variables. / I outline how to manipulate the variables and outline how relevant data will be collected. / I describe how to manipulate the variables and describe how sufficient, relevant data will be collected. / I explain how to manipulate the variables and explain how sufficient, relevant data will be collected.
iv- design of scientific investigation / standard not reached / I design a method with limited success. / I design a safe method and select materials and equipment. / I design a complete and safe method and select appropriate materials and equipment. / I design a logical, complete and safe method and select appropriate materials and equipment.
Criteria / Value
0 / 1-2 / 3-4 / 5-6 / 7-8
C / i- present collected and transformed data / standard not reached / I collect and present data in numerical and/or visual forms / I correctly collect and present data in numerical and/or visual forms / I correctly collect, organize and present data in numerical and/or visual forms / I correctly collect, organize, transform and present data in numerical and/or visual forms
ii- interpret data and explain results using scientific reasoning / standard not reached / I accurately interpret data. / I accurately interpret data and explain results. / I accurately interpret data and explain results using scientific reasoning. / I accurately interpret data and explain results using correct scientific reasoning.
iii- evaluate the validity of a hypothesis based on the outcome of scientific investigation / standard not reached / I state the validity of a hypothesis based on the outcome of a scientific investigation. / I outline the validity of a hypothesis based on the outcome of a scientific investigation. / I discuss the validity of a hypothesis based on the outcome of a scientific investigation. / I evaluate the validity of a hypothesis based on the outcome of a scientific investigation.
iv- evaluate the validity of the method / standard not reached / I state the validity of the method based on the outcome of a scientific investigation. / I outline the validity of the method based on the outcome of a scientific investigation. / I discuss the validity of the method based on the outcome of a scientific investigation. / I evaluate the validity of the method based on the outcome of a scientific investigation.
v- explain improvements or extensions to the method / standard not reached / I state the improvements or extensions to the method that would benefit the scientific investigation. / I outline the improvements or extensions to the method that would benefit the scientific investigation. / I describe the improvements or extensions to the method that would benefit the scientific investigation. / I explain the improvements or extensions to the method that would benefit the scientific investigation.