Name: ______Date: ______Group: _____

LETTUCE CHALLENGE EXPERIMENT DESIGN

Scientific Method Steps / Points
Name, Group and Date in lower right hand corner / 3
PROBLEM
(question being investigated) / WE WANT TO INVESTIGATE:
·  / 2
VOCABULARY
Define these terms while relating them to the lab in an initial background or introductory paragraph to the lab. / Buttercrunch Lettuce –
Absorption –
Porosity –
Soil –
Percolation Rate - / 15
VARIABLES
Define each of these words as well as state what the variables of the experiment are in paragraph form. / Independent:
Dependent:
Control: / 10
HYPOTHESIS
(if… then…because format) / 6
MATERIALS
(All materials should remain in bullet pointed format) / ·  Soil - what type? How much?
·  Pots – how many? What size?
·  Plants – how many? What type?
·  Water – what type? How much?
·  Measuring tools – what do you measure soil with?
What do you measure water with? What do you measure the growth of the plant with?
List all other materials you might need/use: / 10
PROCEDURE
*must include measurements and tools to perform the measurements
Ex: use 50 mL of water
in a graduated cylinder…
Procedure should remain in step by step format as shown here. / BE SPECIFIC ENOUGH THAT SOMEONE CAN REPEAT YOUR PROCEDURE!
12.  / 15
INITIAL SOIL OBSERVATIONS
(Qualitative and Quantitative)
GRAPH / These can be written in paragraph form or included in your data table
(use terms like loose, friable, firm and grainy, silky, sticky).
Line graph showing the growth of the lettuce over time (6 weeks). Must be done on computer or using graph paper and ruler. / 5
10
DATA TABLE
For Control and Experimental Plant
***ONLY use the
columns/rows that
your experiment
needs.
You MUST include both qualitative and quantitative data in your data tables. / Soil type / Soil amount / Water (mL) / Amount of Light / Color of leaves / # of leaves / Height of
leaves / Height of
leaves
NOTE: This is a sample…YOU NEED TO CHANGE AS YOU SEE FIT! / 20
ANALYSIS OF RESULTS
ERRORS/MISTAKES THAT COULD AFFECT VALIDITY
CONCLUSION / Errors/Mistakes:
List variables beyond your control (factors you could not keep the same)
Explain how these variables could have affected your data
Conclusion:
Restate hypothesis
Accept/Reject hypothesis
Use qualitative and quantitative data to support
Explain in detail why you got the results you did.
How would you change this experiment if you were to do it again? / 15
20
Presentation of Lab Report
(Visual Component) / This can be done in the form of a poster or video lab
It SHOULD NOT BE word for word your written report. This is the skull and bones of your project with visual data such as a graph and pictures.
CREATIVITY: DO you have color? DO you have pictures? / 30
NOTES / Do NOT use 1st/2nd person in your lab report (I, me, my, we, etc)
Anything listed as a material MUST be explained in the procedure. Anything mentioned in the procedure, MUST be listed as a material.
ORDER: Follow this format IN ORDER of sections. If poster, present top to bottom OR right to left with your order.

Total _____ / 161 points

Average: ______