Procedures for Yeast:

The Question:

How might UV Radiation Affect Life on Earth?

Background information:

This activity lets students explore the concept of mutations and what causes them. In addition, there is an in-depth introduction, which students will benefit from reading.

Procedure.

Students can follow the detailed instructions from the web activity on Yeast Cultures

http://www.phys.ksu.edu/pub/gene/d1.html

Assessment 1.

Use this Lab Rubric to score students' experiments.

Scores/Criteria
Statement of Problem
Hypothesis or Research Question
Procedure
Visuals of Data and Results
Conclusions
1

No problem stated

None present

No procedure tries things out systematically

None

No reference to patterns and data

Clings to original idea despite contradictory evidence

2

Problem is too general or not clearly stated

No relationship stated to human health or community

Present, but not aligned with problem statement

Outlines a general procedure, but no details

Doesn't manipulate all variables clearly

Attempts to transform data in a table, chart or graph

Lacks labels and clarity

Refers to some but not all patterns and data

3

Problem is too focused and states significance

Relationship stated to either human health or community

Aligns with problem

If hypothesis, no cause and effect

Outlines a detailed procedure

Clearly states the dependent or independent variables

Tranforms data into tables, charts, or graphs

Labels clearly
Attempts to state results

Clearly states reference to patterns and data to support conclusions

4

PLUS-
Relationship stated to both human health or community

PLUS-
If hypothesis, states cause and effect

PLUS-
Clearly states results

Shows replicates
Control is identified

PLUS-
Clearly states results

Abstract and other related artifacts displayed

PLUS-
Explains weaknesses in experiment

Able to make recommendations for further study


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