This experiment was consisted of 4 different colours of light, Blue, Green, Red and Purple. 5) Place a light source 50cm away facing the test tube. Place a piece of elodea in each test tube or glass. Some possible mistakes that could have occurred during this experiment can include the following: Miscalculating the distance between the Elodea plant and the light source.

Graph 2: Light colour vs length grown (cm), (Table 2. Can he write the missing addition symbols and complete the problems? Photosynthesis in Elodea Lab. The ice cream containers were sealed for 5 days so the level of carbon dioxide in the container was probably not enough to sustain photosynthesis and therefore causing the plant to produce fewer bubbles.

Hypothesis: Yes, light intensity does affect the rate of photosynthesis. (For my daily results refer to my log book). Time is the independent variable and will be measured with a stop watch. In this experiment I wanted to find out in what condition the elodea plant can grow and photosynthesis the best. The basic structure of these plants are whirls of leaves around a stem that form a chain of long segments connected to looks like pipe cleaners with usually a diameter of about half an inch or so, depending on the species of elodea plants. Plants perform photosynthesis to create sugars and other organic compounds that they need to survive. Here's a fun way to review photosynthesis with your child! Sample, The comparative biochemistry of photosynthesis, https://graduateway.com/photosynthesis-in-elodea-lab/, Get your custom After 9 minutes (“more time under light source”), there were more bubbles than at the beginning. Elodea is native to North America and it is also widely used as aquarium vegetation. Because of this for my repeat I had to make some major changes, I removed the lamp and decided to measure the length grown in each segment of elodea after 5 days. I repeated the experiment, but this time I decided to remove the 100 watt lamp and instead of measuring the ph of water measure the number of bubbles on each plant everyday and on the fifth day the elodea segments were removed from the container, measured and recorded again to see the amount grown (in length) during the five-day period. For all you mad scientists, here is a helpful lab safety 101! Write the name of the colored film to be tested on each cup (you can also use masking tape to label cups).

If you decide to create an account with us in the future, you will need to enable cookies before doing so. Write a hypothesis to explain which color light will be best for photosynthesis and why. Measure the ph of water using the ph meter. Cover each ice cream container with a cellophane plastic (purple, blue, green and red).
When CO2 dissolves in water, carbonic acid is formed. (Find a price that suits your requirements), * Save 10% on First Order, discount promo code "096K2". Plants have four types of pigments, namely chlorophyll, carotenoids, anthocyanins, and xanthophylls. The plants should all be 12 inches (30 cm) away from their lamp. Record results. From the results that I collected in my log book for my second method it can be seen that the number of bubbles on the leaves of the plants generally decreased each day as the days passed. The efficiency of photosynthesis can be measured, by the amount of oxygen bubbles formed during a given amount of time. You can get your custom paper from
aquatic plant. A recorded pest on rivers and canals in the UK, particularly in the 19th century. Other follow-up experiments that can be done are to test other colours instead of the ones in this experiment like black lights and UV lights and light intensities of a wider range or an experiment to test the effect of temperature variations on the elodea plants. Share this science project . Then send your curated collection to your children, or put together your own custom lesson plan. 4. science suppliers such as Blades Biological. This lab involves the qualitative measurement of the changes in carbon dioxide concentration associated with respiration and photosynthesis in the freshwater plant Elodea. I also realised that my plants are dying because of the high temperature produced by the 100 watt lamp. Little curious minds will enjoy discovering the ins and outs of photosynthesis. This lab involves the qualitative measurement of the changes in carbon dioxide concentration associated with respiration and photosynthesis in the freshwater plant Elodea. Photosynthesis is a food making process for algae and plants. What gases are produced by plants during photosynthesis? Set up the lamps at least several feet apart and away from windows. I averaged the number of bubbles altogether eg I had 3 recordings for every colour per each set of experiments.


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