James Bagby
Ryann Smith
Emily Solano
Henry Tran
Period 4
21 September 2012
The lab team designed and conducted our own experiment about seed germination and growth. We selected our own variables to test in our experiment. We then created a web-based presentation of our experiment.
Purpose:
The purpose of this lab was to create our own experiment while studying seed germination.
Hypothesis:
Our hypothesis was: If Broccoli Calabrese is planted in sand, compost, and a sand-compost mixture, then it will grow faster in the compost.
Materials:
Our materials consisted of 3-6miniature pots, water, light, a ruler, tape, compost, sand, and a compost-sand mixture.
Procedure:
1. Fill the pot half of the way with the compost you are using.
2. Plant three seeds 1 inch away from each other.
3. Fill the pot with compost until you reach the lip or are a quarter away from the top
4. Water the seeds with 5 mL of water.
5. Repeat steps 1-4 with the remaining 2-4 pots. One(or two) with sand, the other(s) with the
sand-compost mixture.
6. Record the growth in each seedlings and write observations each day.
Observations and Data
| 9-4-12 | 9-5-12 | 9-6-12 | 9-7-12 | 9-10-12 | |||
| Sand #1 | Started to germinate (1 seed) Watered with 20 mL | Still germinating | Grew 2 cm | Grew another cm | Grew one more cm | ||
| Compost #1 | “(2 seeds) | “ | Grew 1 cm | Grew 1 more cm | Grew 2 cm | ||
| Sand-compost#1 | Hasn’t started to germinate | Hasn’t started to germinate | Hasn’t started to germinate | Hasn’t started to germinate | Finally germinated | ||
| Sand #2 | Started to germinate | Still germinating | Grew 2 cm | Grew 3 more cm | Grew 1 cm | ||
| Compost#2 | “ | “ | Grew 1 cm | Grew 1cm more | Grew 3 cm | ||
| Sand-compost#2 | Hasn’t started to germinate | Hasn’t started to germinate | Started to germinate | Grew 3 cm | Grew 2 cm |
8. Discussion
The lab results differed from our hypothesis by proving the sand worked the best to germinate and grow the seeds. With these results we can conclude that when working with broccoli calabrese we should use sand instead of compost to get the best product. A factor of our incorrect hypothesis could be the amount of water and light the plants received. To see if this was a major effect we should redo the experiment with different quantities of both those variables.
Team 4-7,
ReplyDeleteThere are some issues with your lab report--it is incomplete as there is no graph(s). Update and republish ASAP to avoid this going into the gradebook as an "I"for incomplete.
Also, the discussion says very little about issues experienced during the lab and additional questions raised by this experiment.
SEE THE FOLLOWING EXAMPLES FROM LAST YEAR'S HONORS BIO:
http://dl.dropbox.com/u/1747709/bursch/honorsbio/seedgerminationlabreports/Buckwheat_Seed_Germination_and_Growth_Difference_Using_Sucrose.pptx
http://dl.dropbox.com/u/1747709/bursch/honorsbio/seedgerminationlabreports/E-report_lentils-SamVini.doc
Also, your title should be larger and mention something about what was tested in the experiment, e.g., "The effects of different growth media on Broccoli Calabrese."
ReplyDelete4-7 Lab e-Report Score
ReplyDelete------------------------------
Title: 1.5/2 (Capitalize major words in title)
Introduction: 1.5/2 ("We selected our own variables to test in our experiment"--what were those variables??)
Purpose: 1.5/2 (What was YOUR group's question about seed germination specifically?)
Hypothesis: 2/2
Materials: 2/2
Procedure: 10/10
Observations/Data: 10/10
Data Analysis: 0/10 (None present in report)
Discussion: 7/10 (Do you think one small trial such as this is enough to solidly support the conclusions you drew in your discussion?)
TOTAL: 36.5/50
COMMENTS: Your report showed some thought. The discussion was very thin and there were no graphs or images to illustrate you procedure/setup/data.