Photosynthesis Lab Report Essay Example for Free

Photosynthesis Lab Report EssayAn audition to investigate the effects of change meanness in pissing on the count of photosynthesis. Aim The rank is to investigate how increasing change in water can affect the tread of photosynthesis. Introduction The rate of photosynthesis can be increased or decreased in many different modalitys. For example, by adding substances analogous alkaline or salt to the water, you can increase or decrease the acidity or basics, if the water has too much acidity, it can often delay the rate of photosynthesis, often stopping the rate of photosynthesis in the go down, which will possibly lead to killing the plant. Another option is to control the strength of the light by controlling the distance 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 alternate but simple way is to change the colored light by compa ring different colored lters and their effects to change the rate of photosynthesis. Some colors bid red and blue increase the rate of photosynthesis, while colors like yellow and green decrease the rate of photosynthesis. Many people would choose the factors that have just been listed, nevertheless there are so many other interesting possible factors when investigating other shipway 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 change is known to increase the rate of photosynthesis when mixed 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 past increases the rate of photosynthesis, technic completelyy increasing the amount of card-houses within the experiment. However, too much carbonate might s low up down the rate of photosynthesis within the plant. This is because, if too much carbonate is added within a sm whole concentration of water with only one small plant, the amount of carbon dioxide released might be too evoke for one plant to handle, increasing the rate of photosynthesis to such a high extent can eventually get ahead the plant loose its energy to photosynthesize.Apparatus/Materials Science apron Large Beaker (1000mls) splatter water Long woody ruler(preferably 30cm) Scissors 12cm offresh Elodea plant Large lamp- 60wat incandescent lamp Carbonate powder Mettle spoon/spatula Skewer Scale Paper stop watch book or laptop to collect dataMethod 1. Find a clean, safe and flat working stead to do your experiment, leave your workbook or laptop used to collect data on your working outer 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. Take a large beaker(1000mls) and guardedly fill it with 500mls of tap water 5. Place the large beaker on your working space, bend down at eye level in line with the water and check that the bottom of the waters meniscus cut down is touching the 500mls point 6. If there is too much water, pour out some of the water into the sink, repeatedly doing musical note 3 to check if the measurement is correct 7. Turn on your lamp and make sure the bulb is 60 wats 8. Take 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 ready your stop watch and your source used to collect data 12. Drop the 12 cm Elodea plant into the water 13. Quickly start the timer when you see 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 the beaker) so that you can see the whole plant 15. Let the stop watch run for three hours(1 minute for each trial) and record how many bubbles there are for each trial for each trial. 16. After close 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 paper thats about the size of your palm, place it on the home 18. Turn on the scale 19. Take a spatula and the tub of carbonate powder and spoon some carbonate onto the paper that is academic session 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 inside the water 22. Quickly stir the carbonate with a spatula so that it is fully fade out 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, watershed the sum by 3 to get you r average. 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, write 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 click whatever graph you think would be best Fair Testing Variables nonparasitic variable Variable details Variables you will change Description The Mass of carbonate powder increases by 0.5grams within each test To Count the amount of bubbles released within each trial Time compose 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