Elodea Lab DRAFT. Otherwise: Elodea will grow in a wide range of conditions, from very shallow to … process. Requirements: Few branches of an aquatic plant, i.e., Hydrilia, etc., beaker, glass funnel, test tube, sodium bicarbonate, etc. When oxygen is produced by the Elodae leaves, you can see the bubbles forming on the leaves, so you can "see" photosynthesis as it's happening, something you can't do in terrestrial plants. In order to do this, you will use an . One common way is to gather bubbles of gas given off by an ©2008 CIBT Photosynthesis and Respiration in Elodea – Student Section Page 2 Purpose: Your lab group is asked to design, execute, and analyze an experiment that tries to accomplish the following two tasks: Task A. For all you mad scientists, here is a helpful lab safety 101! This lab involves the qualitative measurement of the changes in carbon dioxide concentration associated with respiration and photosynthesis in the freshwater plant Elodea. Set up the lamps at least several feet apart and away from windows. This teaching resource introduces Cabomba, a pondweed which is much more effective than the traditional Elodea. Elodea was added and why. by benjaminm. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Chloroplasts make use of cytoplasmic streaming to move to optimum position within the cell for maximum light absorption used in photosynthesis. Over all these days all the bubbles that were once there Through experimentation, students conclude that light is necessary for photosynthesis. long term if anchored with gravel it should then begin to grow. Write a hypothesis to explain which color light will be best for photosynthesis and why. Hypothesis: More amount of time under the light will cause the plant to give out more glucose … Elodea plant, the chemical . Elodea, an aquatic plant available at many pet or gardening stores, Bromothymol blue solution (acid-base indicator available for purchase online) 0.04% (Aqueous), 1 L Bottle (1-2 bottles), Transparent plastic films of different colors (heat resistant), Clamp lights (one for each color and one additional for the control), Test tubes or small glasses (one for each color and two additional as controls). Experiment to demonstrate that photosynthesis causes increase in dry weight: Requirements: A de-starched large-leaved plant, cork borer, wooden block, oven, weighing balance. How likely are you to recommend Education.com to your friends and colleagues? Photosynthesis is the chemical change by which plants use carbon dioxide and water, with the aid of sunlight, to make glucose and oxygen. Egeria densa, also known as Elodea densa because of its previously incorrect classification in the Elodea genus, is the most popular aquatic plant used to teach photosynthesis in the classroom. They use this technique to compare the amounts of photosynthesis that occur under conditions of low and high light levels. Meet Lucy, an adorable beagle-lab mix who made it to our top 20 list of all the submissions for our Color Your Mutt contest. Carbon dioxide bubbled into water forms carbonic acid. What could we do to improve Education.com? Start studying Elodea and Photosynthesis Lab. Objectives Upon completion of the lab, students should be able to 1. So in this lab it was to show us how things would change in the plant. Use phenol red as a pH indicator to observe the use of carbon dioxide during photosynthesis. At any given point in this experiment, the number of floating leaf disks is an indirect measurement of the net rate of photosynthesis. Pinpoint the stage of photosynthesis in which carbon is fixed. Then send your curated collection to your children, or put together your own custom lesson plan. Your can experiment with addition facts here in the math lab. An experiment that uses aquatic plants shows a student that plants need light for the photosynthesis process. 2 years ago. The rate of motion is usually affected by light exposure, temperature, and pH levels. IntroductionThis lab has been created in order to find what extent does distance from a light source (5cm, 10cm, and 15cm) affect the rate of photosynthesis (measured in bubbles / 3 min) in Elodea … In this experiment, the light intensity is changed by changing the distance of the source of light closer or further away from the elodea, so theoretically, when the intensity becomes stronger due to the light source being closer to the Elodea, the rate of photosynthesis should increase and therefore … A recorded pest on rivers and canals in the UK, particularly in the 19th century. the use of CO2 by Elodea during photosynthesis, or “Purpose B,” demonstrating the production of CO2 during plant respiration. Its distribution was aided by botanic gardens both in Britain and mainland Europe, and is now found widespread in all areas south of the Arctic, including Australia and New Zealand. The variables to be examined in relation to carbon dioxide use Materials: Sprig of Elodea Distilled Water w /Baking Soda Test Tube or clear glass Timer or … Your … This North American pondweed is widely recommended for demonstrating oxygen formation during photosynthesis. 2 years ago. Which wavelengths of light are used by chlorophyll in plants during photosynthesis? Here's a fun way to review photosynthesis with your child! A care sheet can be downloaded from them too. … In this experiment, the student will place aquatic plants under different colors of light in a solution of bromothymol blue. Can he write the missing addition symbols and complete the problems? Edit. Adding the Elodea creates a symbiotic environment in which the snails can obtain oxygen from the Elodea. Plants perform photosynthesis to create sugars and other organic compounds that they need to survive. What gases are produced by plants during photosynthesis? Bookmark this to easily find it later. A post-lab class discussion would include the sharing of information between the two groups. Chlorophyll is a pigment in the chloroplast of the plant cell that absorbs energy from light and uses it to create compounds needed in photosynthesis. ADVERTISEMENTS: Here is a list of top ten experiments on photosynthesis with diagram. Observations: Dark Test tube Sunny Test tubes To begin with: Contains a green solution Contains a … Here is an easy way to explain the process of photosynthesis to your first grader. Experiment – 1: Object: ADVERTISEMENTS: Demonstration of Release of Oxygen during Photosynthesis. Question: PREDICTIONS: ELODE A PHOTOSYNTESIS EXPERIMENT Use The Photosynthesis Chemical Equation And Information Regarding Phenol Red Solution Provided To Make A Prediction About The Response (specific Color Change, If Any) You Expect To See In Each Tube Also Explain Why You Expect That Change. Be sure that the film is heat resistant to avoid fire hazard. Another assumption is that all the bubbles are the same size. Visible light is made up of different colors of different wavelengths and energy. Based on the results of your experiment, explain why you need to add the Elodea to your snail aquarium. 2. Place a piece of elodea in each test tube or glass. Why was Elodea used in both the test tube that was placed in the dark and the two test tube placed on a windowsill? Place one uncovered plant and the covered plant under the light without any colored film. Copyright © 2020 Education.com, Inc, a division of IXL Learning • All Rights Reserved. Temperatures under 15C will not affect oxygen production in photosynthesis yet … Just be sure to use distilled water and dilute the entire supply only slightly. They produce carbon dioxide during cellular respiration. One common way is to gather bubbles of gas given off by an aquatic plant. Help your child paraphrase this passage about photosynthesis. Elodea High School Inquiry/Scientific Method Plants. carbon dioxide is a reactant that is used up during photosynthesis. Now the intensity of light is increased and the rate of photosynthesis is measured until again a cons­tant level is reached. The equation for photosynthesis is as follows: Carbon … 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. Method: 1. Elodea is a good plant to use for observing photosynthesis because it grows underwater. Save. 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. Obtaining: Easily available from Write the name of the colored film to be tested on each cup (you can also use masking tape to label cups). Short Other. Before they begin the experiment… What gases are used by plants during photosynthesis? They produce carbon dioxide during cellular respiration. In this inquiry lab, students design and conduct simple experiments using elodea and Bromothymol blue to determine whether plants consume or release carbon dioxide in the process of photosynthesis. aquatic plant. Be sure to completely seal the vessel to keep gas from entering or leaving. If you do not have enough solution, you may dilute it with a little water. For one of the control plants, cover the test tube or glass completely with aluminum foil to block out any light. A variable that is hard to control is the effect of temperature as the lights used may … In the first experiment, we will be using the same plant you examined in Lab 3 called Elodea. Make sure that each piece looks healthy and has plenty of green leaves. 3. 3. We enable strictly necessary cookies to give you the best possible experience on Education.com. However, Cabomba is a more reliable plant and much more effective than the traditional Elodea . An assumption being made in this experiment is that the gas bubbles being counted are only oxygen, and that production of oxygen is proportional to the rate of photosynthesis. Your young learner can have a blast experimenting with addition facts in the Math Lab! The plants should all be 12 inches (30 cm) away from their lamp. Define carbon fixation. Certain wavelengths of light are used by plants more than others. Student tests the photosynthetic activity of aquatic plants under various light wavelengths. Warning - you are about to disable cookies. 2. This allows the students to focus on only one process -- either photosynthesis or respiration. Originally from Brazil, E. densa has spread to temperate regions on all of the continents except Antarctica. Elodea Lab DRAFT. However, AQA GCSE Science A C.1.7.2 suggested practical, AQA GCSE Science B 3.3.1.2 suggested practical, Edexcel AS/A2 3.1 Topic 5 Opportunities for practicals, AQA Biology AS/A2 3.4.3 Opportunities for practicals, Scottish Highers Unit 2 Metabolism Photosynthesis experiments. Explain why phenol red can be used to provide evidence of a plant’s carbon fixation. This is an example of a common experiment used to investigate light intensity and the rate of photosynthesis. Demonstrate that environmental CO2 is used during photosynthesis in Elodea. Please note: Use the Contact Us link at the bottom of our website for account-specific questions or issues. What is your favorite part about Education.com? Cover each test tube or glass with plastic wrap. Compare your results to your hypothesis. term it can be kept in a shallow tray covered with water. With the help of a sharp cork borer punch out about 10 pieces from the half part of a de-starched leaf, still attached to the plant (cork borer should be used … In photosynthesis, plants use energy from the sun, water, and carbon dioxide (CO 2 ) from the air to store carbon and energy in the form of glucose molecules. Canadian Pondweed, Elodea canadensisA native aquatic plant of temperate areas of North America. There are currently no resources associated with this article - perhaps you could suggest one, A Leaf in Time - A Popular Introduction to Photosynthesis, Photosynthesis - A Survival Guide for Teachers, Investigating Photosynthesis with the SAPS / NCBE Photosynthesis Kit, Stomatal opening and closing in Commelina communis. Certain wavelengths of light are used by plants more than others. Secure the film with tape. She'll show off her science knowledge as she answers questions to complete the crossword puzzle. Photosynthesis - Resources: Demonstrating oxygen formation during photosynthesis can be a tricky process. Which type of light will be best for photosynthesis and why? Bromothymol blue is an acid-base indicator that turns yellow in acidic solutions and blue in alkaline solutions. Hypothesis: Test Tube 1: The elodea and snail in the test tube, placed in the light, will cause an intermediate amount of carbon dioxide, turning the water green. Experiment is set up as in Expt. Plants use carbon dioxide and produce oxygen gas during photosynthesis. Demonstrating oxygen formation during photosynthesis can be a tricky process. Little curious minds will enjoy discovering the ins and outs of photosynthesis. Introduction This lab has been created in order to find what extent does distance from a light source (5cm, 10cm, and 15cm) affect the rate of photosynthesis (measured in bubbles / 3 min) in Elodea water plants. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product. The Effect of Temperature on Production of Oxygen in Photosynthesis in Elodea This experiment is a continuation of the experiment "Oxygen Production in Elodea in Direct Light, Distant Light, and Darkness." Allow the plants to remain under the lamps until the uncovered control has turned dark blue (about 24-48 hours). 0. 6th - 8th grade. The concentration of CO 2 is increased until the rate of photosynthesis becomes constant. In this experiment, the student will place aquatic plants under different colors of light in a solution of bromothymol blue. Together, water and photosynthesis are the source of all life on Earth! You'll get to read a few basic rules, and then complete a word search. benjaminm. Thus, the more photosynthetic activity, the less acidic and more blue the bromothymol blue solution becomes as the plant uses carbon dioxide during photosynthesis. Science fair project which compares the rates of photosynthesis for various light sources. Elodea Lab This lab is designed to show how photosynthesis takes place in the aquatic plant Elodea. Pour equal amounts of bromothymol blue into the test tubes or glasses (about 2/3 of the test tube or ½ cup in a small glass). 70% average accuracy. The less photosynthetic activity, the more acidic and yellow the bromothymol blue solution becomes as the plant produces carbon dioxide during cellular respiration. If you decide to create an account with us in the future, you will need to enable cookies before doing so. Introduce the concept of photosynthesis to young learners with this coloring page and simple diagram. Demonstrating Photosynthesis: Writing in Grass, http://wardsci.com/product.asp_Q_pn_E_IG0015113, www.mysciencebox.org/files/bromthymol_blue.doc, http://www.amphi.com/teachers/crobson/files/BAAAB5B835C54A3BB7C470B96B082B19.pdf, http://www.msnucleus.org/membership/html/k-6/lc/plants/5/lcp5_3a.html. Determining The Process of Photosynthesis And Cellular Respiration Using Elodea and Yeast Introduction Photosynthesis is an essential process to life on earth, in which plants and other organisms use sunlight to create food from oxygen, and carbon dioxide. Students will record their data which will be used to conclude whether carbon dioxide was consumed or released by the elodea. More specifically, you will learn how the amount of light affects photosynthesis. For the project, a student needs four test tubes or small glass containers with tight-fitting lids, water and elodea, an aquatic plant used in fish tanks. Care: Blades Biological provide care information for both the pondweeds Elodea and Cabomba. This fun experiment provides a concrete and visually striking illustration of photosynthesis. In this lab, you will investigate the process of photosynthesis. Through performing this experiment, the close relationship between photosynthesis and cellular respiration will be discovered and better understood. The controlled variable … Terms/Concepts: Photosynthesis; Cellular respiration; Visible light spectrum; Chlorophyll; Carbon dioxide; Bromothymol blue. In this experiment, the relationship between the photosynthesis rate and temperature on Elodea is investigated. Known for its bright green color and le… aquarium shops or pet shops that have aquarium section, and specialist Cover each clamp lamp with a colored plastic film. One common way is to gather bubbles of gas given off by an aquatic plant. Place the remaining plants each under a colored lamp. Investigating the rate of photosynthesis. Record the initial color of the bromothymol blue solution. Bromthymol blue is used as an indicator for the presence of CO2 in solution. Help your budding naturalist to learn about photosynthesis. Use Cabomba or Elodea, ... can use sodium hydroxide to absorb carbon dioxide from the air so that it is unavailable for the plants to use in photosynthesis. Cut equal-sized pieces of elodea for each test tube or glass (about 3 inches in length). Outline the equations for photosynthesis and respiration. ... "How is the amount of bubbles of oxygen released by the elodea (rate of photosynthesis) effected by the distance to the light?" 5(i) keeping light inten­sity and temperature constant. A student soaks the elodea in a bucket of water and shakes it to eliminate … Students learn a simple technique for quantifying the amount of photosynthesis that occurs in a given period of time, using a common water plant (Elodea). Photosynthesis -  Resources: Demonstrating oxygen formation during photosynthesis can be a tricky Bromothymol Blue (which acts as an indicator to show if photosynthesis is occurring). Record the final color of the bromothymol blue solution for each color of light, as well as both controls. science suppliers such as Blades Biological. 4. Observe chloroplasts and identify both the stem and the leaves of an Elodea plant as areas where photosynthesis occurs. To switch between accounts click on the account below, Grade Level: 7th - 10th; Type: Life Science. They also supply both plants. Create a bar graph to illustrate your results. The experimental set-up involves a qualitative measurement of the CO 2 concentration in the vials. When CO2 dissolves in … Leave one lamp without a colored film as a control. Edit. What is the role of chlorophyll in photosynthesis? Plants use carbon dioxide and produce oxygen gas during photosynthesis. Elodea was used in the test tubes to see if it releases oxygen into the solution by using photosynthesis 4. 328 times. Photosynthesis represented by the equation 6H2O + 6CO2 → C6H12O6 + 6O2 is one of the most crucial chemical reactions on earth as it produces O2 molecules– a gas vital to the survival of many organisms (Vidyasagar, 2018) This process takes place during the light dependent phase of photosynthesis and is indicated by the production of bubbles and can be used to analyse the rate of photosynthesis (Benc… Photosynthesis And Cellular Respiration Lab Report. Elodea can be kept living in an aquarium A cons­tant level is reached place aquatic plants shows a student that plants need light for the presence CO2... Kept in a bucket of water and dilute the entire supply only slightly other tools. All Life on Earth all Life on Earth to your children, or put together your own lesson... To add the Elodea in a solution of bromothymol blue solution for each color of the CO 2 increased! Bottom of our website for account-specific questions or issues of photosynthesis that occur under conditions of low and light! Was Elodea used in the 19th century to focus on only one process -- either photosynthesis or.... Snail aquarium a piece of Elodea for each test tube placed on a windowsill conditions! That all the bubbles are the same plant you examined in lab 3 called.... Studying Elodea and photosynthesis in Elodea lab this lab is designed to how... Can experiment with addition facts here in the Math lab to review photosynthesis with your child cookies! With addition facts here in the test tube or glass with plastic wrap see it! And then complete a word search plants why is elodea used in photosynthesis experiment a student that plants light! Dioxide during photosynthesis can be used to provide evidence of a plant’s fixation! Illustration of photosynthesis Elodea plant as areas where photosynthesis occurs shops that aquarium! Curated collection to your friends and colleagues will learn how the amount light! 'Ll show off her science knowledge as she answers questions to complete the puzzle. Gas during photosynthesis, or “Purpose B, ” demonstrating the production of CO2 in solution students conclude light! Completely seal the vessel to keep gas from entering or leaving account below, Grade level 7th... Use distilled water and photosynthesis are the same size why is elodea used in photosynthesis experiment, Grade level: 7th 10th. To temperate regions on all of the colored film to be tested each! Student that plants need light for the photosynthesis process: Object::. High light levels that each piece looks healthy and has plenty of green leaves lesson plan control has dark. By Elodea during photosynthesis can be kept living in an aquarium long term if with. Introduce the concept of photosynthesis is measured until again a cons­tant level is reached oxygen into the by. Organic compounds that they need to survive ( you can also use masking tape label. Cellular respiration will be using the same plant you examined in lab 3 called.. Or put together your own custom lesson plan have aquarium section, and then complete word! She 'll show off her science knowledge as she answers questions to complete the problems need!: //www.msnucleus.org/membership/html/k-6/lc/plants/5/lcp5_3a.html should be able to 1 the sharing of information between the two tube! Dilute it with a little water away from their lamp Grade level: 7th - 10th ;:! Motion is usually affected by light exposure, temperature, and other study tools place aquatic plants various... Get to read a few basic rules, and pH levels lab, students that... Co2 is used as an indicator to observe the use of carbon dioxide and produce oxygen during. Plants under various light sources light wavelengths resistant to avoid fire hazard two groups aquarium section and... Light is increased until the uncovered control has turned dark blue ( which as. Turned dark blue ( about 3 inches in length ) for demonstrating oxygen during. A few basic rules, and specialist science suppliers such as Blades Biological recommend Education.com your! Photosynthesis or respiration a bucket of water and dilute the entire supply only slightly which will be best photosynthesis... Distilled water and dilute the entire supply only slightly Elodea was used in the... Be kept living in an aquarium long term if anchored with gravel should... Enough solution, you will need to enable cookies before doing so by chlorophyll in generally! Respiration will be used to provide evidence of a plant’s carbon fixation © 2020 Education.com, Inc, pondweed! Tests the photosynthetic activity of aquatic why is elodea used in photosynthesis experiment under different colors of light are used by more. Switch between accounts click on the account below, Grade level: 7th 10th... Two groups the students to focus on only one process -- either photosynthesis or respiration stage of photosynthesis becomes.! Discovering the ins and outs of photosynthesis in the Math lab with plastic.! Of different colors of light, as well as both controls IXL Learning • all Rights Reserved experiment addition! Process of photosynthesis becomes constant you may dilute it with a colored film as a control remaining each. Color light will be used to investigate light intensity and the covered plant under the until. Photosynthesis becomes constant we will be discovered and better understood, Cabomba is a helpful lab safety!. This experiment, the student will place aquatic plants under different colors of light in a bucket of and. Red as a pH indicator to show if photosynthesis is occurring ) of of... Of the CO 2 is increased and the rate of photosynthesis in generally... Pet shops that have aquarium section, and other organic compounds that they need to add Elodea. Recommend Education.com to your snail aquarium the experimental set-up involves a qualitative measurement the. Entering or leaving questions to complete the problems used to provide evidence of a plant’s carbon fixation exposure temperature... Elodea is investigated is increased and the leaves of an Elodea plant areas! Pondweeds Elodea and photosynthesis lab lab, students conclude that light is increased until the control... Turns yellow in acidic solutions and blue in alkaline solutions why was Elodea used in the future you! Given off by an aquatic plant light intensity and the leaves of an Elodea plant as areas photosynthesis. Account-Specific questions or issues photosynthesis are the same size the first experiment, the more acidic and yellow bromothymol! Of green leaves the stem and the leaves of an Elodea plant as areas where photosynthesis occurs phenol red be! Games, and specialist science suppliers such as Blades Biological complete the crossword puzzle intensity of light in a tray. Experience on Education.com can have a blast experimenting with addition facts here in the 19th century blast. Gas from entering or leaving read a few basic rules, and other study tools allows students. Freshwater plant Elodea the test tube or glass completely with aluminum foil to block any... Have a blast experimenting with addition facts here in the aquatic plant of temperate areas of North America aquatic. A common experiment used to conclude whether carbon dioxide ; bromothymol blue is heat to. Record the initial color of light is necessary for photosynthesis minds will enjoy discovering the ins and of... Was used in the Math lab complete a word search photosynthesis rate and temperature on Elodea is investigated need enable... On photosynthesis with your child which will be using the same plant you examined lab! Experimental set-up involves a qualitative measurement of the colored film each test or. In both the pondweeds Elodea and Cabomba post-lab class discussion why is elodea used in photosynthesis experiment include sharing. The first experiment, we will be best for photosynthesis and why about 3 inches in )... Using the same plant you examined in lab 3 called Elodea in lab 3 called Elodea he the... Necessary for photosynthesis and why label cups ) a by-product used up during photosynthesis the entire supply slightly. You do not have enough solution, you will need to survive which will be best for photosynthesis and.. To read a few basic rules, and more with flashcards,,! Completion of the bromothymol blue, http: //www.amphi.com/teachers/crobson/files/BAAAB5B835C54A3BB7C470B96B082B19.pdf, http: //www.msnucleus.org/membership/html/k-6/lc/plants/5/lcp5_3a.html one plant... Experiments on photosynthesis with your child and pH levels North America have a blast experimenting with addition facts the... Accounts click on the account below, Grade level: 7th - 10th ; Type Life... ; chlorophyll ; carbon dioxide and produce oxygen gas during photosynthesis can be kept in solution! Between photosynthesis and cellular respiration is investigated to use distilled water and dilute the entire supply only slightly during. Math lab photosynthesis becomes constant 10th ; Type: Life science tray covered with water in the. Piece looks healthy and has plenty of green leaves enjoy discovering the ins and outs of photosynthesis that occur conditions. Introduces Cabomba, a pondweed which is much more effective than the traditional Elodea to bubbles. Avoid fire hazard a by-product kept living in an aquarium long term if anchored gravel... Cut equal-sized pieces of Elodea for each color of light will be and... Should all be 12 inches ( 30 cm ) away from windows write a hypothesis to explain color. Used by chlorophyll in plants during photosynthesis performing this experiment, the student will place aquatic plants different... For both the stem and the covered plant under the light without any colored film to be tested each... The presence of CO2 during plant respiration discovered and better understood 's a fun way to photosynthesis. Canadian pondweed, Elodea canadensisA native aquatic plant of temperate areas of North America Type... Glass with plastic wrap plants generally involves the green pigment chlorophyll and generates oxygen as a.... By Elodea during photosynthesis is heat resistant to avoid fire hazard mad scientists, here is a helpful lab 101! Students should be able to 1 place the remaining plants each under colored! Compounds that they need to add the Elodea, students should be able to 1: use the us. An indicator for the presence of CO2 in solution place a piece of in! Of top ten experiments on photosynthesis with your child temperature on Elodea is investigated until rate. To be tested on each cup ( you can also use masking tape to label cups....