Photosynthesis Lab Report Essay Example for Free

Photosynthesis Lab Report EssayAn experiment to investigate the effect of carbonate concentration in water on the rate of photosynthesis. Aim The aim is to investigate how increasing carbonate in water fuel incite the rate of photosynthesis. Introduction The rate of photosynthesis can be increased or decreased in many different ways. For example, by adding substances like alkaline or salt to the water, you can increase or decrease the acidity or basics, if the water has too much acidity, it can much delay the rate of photosynthesis, often stopping the rate of photosynthesis in the found, which will possibly lead to killing the plant. Another option is to control the strength of the light by controlling the surmount of the light from the plant. If the light is a far distance from the plant, the strength of light for the plant would be very weak, therefore decreasing the rate of photosynthesis.Another stick tabu but simple way is to change the colored light by comparing di fferent colored lters and their effects to change the rate of photosynthesis. Some color in like red and blue increase the rate of photosynthesis, while colors like yellow and green decrease the rate of photosynthesis. Many people would consider the factors that have just been listed, however there are so many other interesting possible factors when investigating other ways in which you can affect the rate of photosynthesis, Therefor, for this experiment the independent variable chosen is the amount of carbonate in water.Hypothesis Carbonate is known to increase the rate of photosynthesis when blend with water, this is because plants inhale carbon dioxide which is what carbonate is made from along with other bases. By diluting carbonate in the water, this increases the amount of carbon dioxide in the water, which then increases the rate of photosynthesis, technically increasing the amount of bubbles in spite of appearance the experiment. However, too much carbonate might slow do wn the rate of photosynthesis within the plant. This is because, if too much carbonate is added within a small concentration of water with only one small plant, the amount of carbon dioxide released might be too overwhelming for one plant to handle, increasing the rate of photosynthesis to such a high extent can eventually make the plant loose its energy to photosynthesize.Apparatus/Materials attainment apron Large Beaker (1000mls) Tap water Long wooden ruler(preferably 30cm) Scissors 12cm offresh Elodea plant Large lamp- 60wat bulb Carbonate powder cheek spoon/spatula Skewer Scale Paper stop watch book or laptop to collect dataMethod 1. Find a clean, unspoilt and flat working space to do your experiment, leave your workbook or laptop used to collect data on your working space 2. Put on a safety lab apron or coat 3. Grab all the equipment thats on the equipment list and place it on your working space 4. commence a large beaker(1000mls) and carefully fill it with 50 0mls of tap water 5. Place the large beaker on your working space, bend down at eye direct in line with the water and check that the bottom of the waters meniscus curve is touching the 500mls point 6. If there is too much water, pour out nearly of the water into the sink, plagiarizeedly doing step 3 to check if the measurement is correct 7. Turn on your lamp and make sure the bulb is 60 wats 8. engineer your ruler and make sure the length distance between the lamp and the beaker is 1 cm, and make sure the height distance between the bulb and the beaker is 0 cm 9.Take the Long wooden ruler (preferably 30cm) and some scissors to measure and cut 12cm of fresh Elodea plant 10. Turn on the lamp 11. Get found your stop watch and your source used to collect data 12. Drop the 12 cm Elodea plant into the water 13. Quickly start the timepiece when you key out the first bubble and record it in your data table for Trail 1 14. When watching the plant, watch it from birds eye view(above th e beaker) so that you can see the whole plant 15. Let the stop watch run for three minutes(1 minute for each exertion) and record how many bubbles there are for each attempt for each trial. 16. After finishing the three trials, if the plant floats to the top, push the plant down with a skewer 17.For the next test, rip a section of authorship thats about the size of your palm, place it on the scale 18. Turn on the scale 19. Take a spatula and the tub of carbonate powder and spoon some carbonate onto the paper that is sitting on the scale. 20. Keep on adding and taking away till you get 0.5 grams 21. Take the paper with the 0.5 grams of carbonate and pour it at bottom the water 22. Quickly stir the carbonate with a spatula so that it is fully dissolved into the water equally 23. Start the timer when your done stirring and repeat from step 14 to step 2224. Once the data is finished collecting, add up the data for the 3 trialsfor the first test, divide the sum by 3 to get your avera ge. Do this for a the rest of your tests till you get 5 averages for each of the 5 tests 25. Make a table on Exle, salve test 1, 2 and so on in each cel and the amount of carbonate, then write the averages for each of the tests under 26. Highlight all of this then rupture whatever graph you think would be best Fair Testing Variables Independent variable Variable details Variables you will change Description The big bucks of carbonate powder increases by 0.5grams within each test To Count the amount of bubbles released within each trial Time frame for each trial 60sec Distance in length and height between the lamp and the beaker is 0cm in height and 1cm in length. Bulbs wattage-60wats Mass of water in the beaker for every test is 500mls