± This is a description of how to set up and collect data for the Rate of Photosynthesis Lab in the K12 biology curriculum. Site: bit.ly/pholab (you can type "glencoe photosynthesis" into a google search to find this resource) - Read the summary in the side bar which explains how colors of light affect plant growth. : KF ÓG Œ °H 0 àH kF ø dM é! Elodea Lab DRAFT. VIRTUAL LAB Carbon Transfer through Snails and Elodea Bromothymol blue (BTB) is an indicator that turns yellow in the presence of carbon dioxide. Materials: Sprig of Elodea Distilled Water w /Baking Soda Test Tube or clear glass Timer or Watch In this simulation, you will be looking at the production of oxygen as a plant photosynthesizes. ¥ __________________ Results: Record your results in the table below. Worksheet. (If it stays blue, the BTB is too concentrated; if it turns yellow, the BTB is too diluted.) Add 2 mL of bromothymol blue to the water. Increasing the distance of light from the Elodea causes what type of change in the number of bubbles produced? ____________________________________________________ Hypothesis: ________________________________________________________________________________________________________________________________________________________________________ Material Preparation: If concentrated bromothymol blue (BTB liquid) is available, dilute with water (distilled works best) and test the concentration by adding 10 ml of your BTB solution to 15 ml water and bubbling one lung full of air through a straw into the water. Consider these facts: - Elodea is green. SampleNo Elodea + Tinfoil (Control)Elodea + TinfoilElodea + LightColor Before ExperimentColor After Experiment Conclusions: Write 2 to 3 sentences based on your results.   â Background: Photosynthesis is the cellular process in which autotrophs capture light energy and convert it to chemical energy (glucose) using carbon dioxide and water. Where do plants get CO2 from for photosynthesis? 5 Grade Level: ... She'll show off her science knowledge as she answers questions to complete the crossword puzzle. e ™! &. In order to do this, you will use an Elodea plant, the chemical Bromothymol Blue (which acts as an indicator to show if photosynthesis is occurring). In our experiment with Elodea, what was our dependent variable. ________________________________________________________________________ _________________________________________________________________________________ What gas (or gases) can bromothymol blue serve as an indicator for? ˆ It should be a blue solution. ______________________________________________________________ _________________________________________________________________________________ What happened to the color in Test Tube 1? Over all these days all the bubbles that were once there Where To Download Snail And Elodea Lab Answers could increase your close associates listings. Then place it in the test tube rack. In our experiment with Elodea what was our independent variable? How do you account for any differences in color? Share this science project . More specifically, you will learn how the amount of light affects photosynthesis. Because the leaves of Elodea are only a few cells thick, they will be easy to observe under the microscope to look at cells and cell parts. Í Question: For This Lab It Asked Me To Calculate The Rate Of Photosynthesis = Rate Of Volume Change In Light - Rate Of Volume Change In Dark. Played 328 times. The independent variable is? _________________________ What gas do plants give off? Ÿ Bromothymol Blue (which acts as an indicator to show if photosynthesis is occurring). W __________________ Explain your answer. Title: ELODEA LAB- PHOTOSYNTHESIS Author: Classroom/Lab Last modified by: Harel Jay Sharp Created Date: 11/16/2011 6:01:00 PM Company: I.S.D. Elodea Lab. In preparation for the lab, purchase and then pre-cut sprigs of elodea. ™! Science . Using a straw, GENTLY blow into the solution causing it to bubble for approximately 1 minute. Bromthymol blue is used as an indicator for the presence of CO2 in solution. 3rd grade . Look At My Data Below And Answer The Following Question. Photosynthesis Virtual Lab Site 1: Glencoe Photosynthesis Lab "Which colors of the light spectrum are most important for plant growth?" You have learned that photosynthesis involves the conversion of carbon dioxide and water into organic molecules such as glucose. 1. Just make sure that they are kept in cool water until used. 742 Public Schools 6 In this lab, you will investigate the process of photosynthesis. S-7-8-1_Rate of Photosynthesis Lab KEY Rate of Photosynthesis Lab: Answer KEY Write the formula for photosynthesis here: CO 2 + H 2 O + light energy → C 6 H 12 O 6 + O 2 Now, write the formula in the form of a sentence: Carbon dioxide plus water plus light energy from the Sun combine to form glucose and oxygen. I don't really have time to go get elodea or any plant right now, so I really need to know if it will work with just regular flower leaves. Explain why you obtained the results that you did. This lab involves the qualitative measurement of the changes in carbon dioxide concentration associated with respiration and photosynthesis in the freshwater plant Elodea. Summary: This lab that we did was to see what would happen to see what would happen to the Elodea plant if we put a different substance in our beakers. More specifically, you will learn how the amount of light affects photosynthesis. Bromothymol blue works because it is able to detect the presence of CO2 (needed for photosynthesis) and O2 (released during photosynthesis) in solution. Learn vocabulary, terms, and more with flashcards, games, and other study tools. ___________________________________________________ _________________________________________________________________________________ Compare the Elodea in the dark to the Elodea in the light. _________________________ _________________________________________________________________________________ What gas do you exhale? In order to do this, you will use an . Observing Photosynthesis in Elodea Objective: Observe the process of photosynthesis in Elodea plants. Ø Purpose: To find out how the Elodea cell looks like and study it under magnification and compare it to different cell parts under a microscope. Cover the test tube with plastic wrap or a stopper. Cover Tube 1 with tin foil (there is no Elodea in Tube 1) and place it in the test tube rack Add a 7 cm piece of Elodea to Tube 2. by benjaminm. Elodea plant, the chemical . When we observed Elodea under water, what gas was visibly bubbling from its stem? Î Ï Ú ô ì `' C“ ì `' C“ ôÿ `' åÜ ä `' C“ ä `' C“ ôÿ `' åÜ Òÿ `' ê Òÿ `' ê Çÿ `' åÜ ì `' C“ ì `' C“ Çÿ `' åÜ ôÿ `' ɹ Çÿ `' åÜ ì `' C“ ì `' C“ ¸ÿ `' åÜ © `' C“ $ ... Use this site to answer questions about photosynthesis. 13. á J ùõùëáİÖİÖİÖİÖİÖİÖİÖÎİÖÎİÖİÖİÖİÖÎĽÖÎÄÎÖİÖ½µ½­½µ½­¦œõ•õ•œ h=]ú h˜ò h=]ú h˜ò 5�>* h=]ú hÜ\ü hÜ\ü hÜ\ü 6�hÜ\ü hÜ\ü H*hÜ\ü hÜ\ü hÜ\ü hÜ\ü 5�H* hÜ\ü hÜ\ü 5�hğ~L hÜ\ü hÜ\ü hÜ\ü h=]ú 5�>* h=]ú h=]ú 5�>* h=]ú h=]ú h=]ú 8 7 ’ “ Ÿ d ™! Have at least 7-9 lab stations set up in the room with lamps. Explain your prediction. The chemical reaction for photosynthesis 4 Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. 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