cARBON TRANSFER
Name:
Online Lab: Carbon Transfer Through Snails and Elodea
Record answers in blue, bold font
Go to http://www.classzone.com/cz/books/bio_07/resources/htmls/virtual_labs/virtualLabs.html
(If the link does not work, go to http://www.classzone.com/cz/index.htm
Enter Science, High School; NC; Go
Click Biology 2008 (book on left)
Click Virtual Labs (left side 2nd row)...continue with directions below)
Click on Carbon Transfer Through Snails and Elodea. Read through the directions and complete this lab, answering the lab notebook questions (in bold) in the appropriate locations below. When indicated, enter the lab set-up as indicated below to assist you.
(NOTE: You will make entries about your observations and predictions in the online lab notebook in order to advance through the online experiment. However, you can type anything in the required location to advance; it does not have to be the correct answer or what you have recorded in this lab worksheet.)
Hypothesis – Step 1
1. How does carbon dioxide cycle in aquarium water through snails and Elodea?
Experiment – Step 2
2. Measuring CO2: How will you measure the level of CO2? (Hint: look at the bottom right corner of the lab bench graphic!)
3. Independent variable: Type “The number of Elodea plants in a test tube”. This is what will vary from one test tube to the next.
4. Control: Your control should be a test tube without any Elodea in it, so that you can determine what effect the Elodea has on the levels of carbon dioxide in the test tube. Type “a test tube with one snail, but without any Elodea”
5. Experimental Design: The more trials the better! How many test tubes will you use? ___
a. Identify the set-up for each tube, using Tube #1 as your control:
Tube #1: __________________________ (See #4 above for help)
Tubes #2-7: 1 snail + 1 Elodea
Data
Step 4 - Complete the data table below – contents and predicted end color
Step 6 - Complete the data
Online Lab: Carbon Transfer Through Snails and Elodea
Record answers in blue, bold font
Go to http://www.classzone.com/cz/books/bio_07/resources/htmls/virtual_labs/virtualLabs.html
(If the link does not work, go to http://www.classzone.com/cz/index.htm
Enter Science, High School; NC; Go
Click Biology 2008 (book on left)
Click Virtual Labs (left side 2nd row)...continue with directions below)
Click on Carbon Transfer Through Snails and Elodea. Read through the directions and complete this lab, answering the lab notebook questions (in bold) in the appropriate locations below. When indicated, enter the lab set-up as indicated below to assist you.
(NOTE: You will make entries about your observations and predictions in the online lab notebook in order to advance through the online experiment. However, you can type anything in the required location to advance; it does not have to be the correct answer or what you have recorded in this lab worksheet.)
Hypothesis – Step 1
1. How does carbon dioxide cycle in aquarium water through snails and Elodea?
Experiment – Step 2
2. Measuring CO2: How will you measure the level of CO2? (Hint: look at the bottom right corner of the lab bench graphic!)
3. Independent variable: Type “The number of Elodea plants in a test tube”. This is what will vary from one test tube to the next.
4. Control: Your control should be a test tube without any Elodea in it, so that you can determine what effect the Elodea has on the levels of carbon dioxide in the test tube. Type “a test tube with one snail, but without any Elodea”
5. Experimental Design: The more trials the better! How many test tubes will you use? ___
a. Identify the set-up for each tube, using Tube #1 as your control:
Tube #1: __________________________ (See #4 above for help)
Tubes #2-7: 1 snail + 1 Elodea
Data
Step 4 - Complete the data table below – contents and predicted end color
Step 6 - Complete the data