The last class only had 1 group do it right. So Mr. Finley challenged us to do better. Today we are doing a slightly modified lab from yester day. We ar e basically doing the same thing as yesterday except we are testing to find out how light effects photosynthesis instead of carbon dioxcide. You want to get a green leafy plant because it will photosynthecise easier because there are a lot of cholroplasts in each leaf which does photosynthecise. Baking soda is really sodium bicarbonite. The procedure is the same except Mr. Finley gives you baking soda instead of you getting soduim bicarbonite. Also the amount doesn't change. Lastly you need to put a light 10 cm away and watch it for 4 minutes then move it to 20 then lastly after 4 more minutes move to 30 and wait 4 more minutes. As you are going write down the data.
T G
Also you forgot to add that you have one person watch the clock for four minutes, and the rest of the people watch the test tube for air bubbles coming off the stem. You also need to cut and crush the stem of the elodea. Lastly you need to hold the test tube by the top or bottom so you are not blocking the leaves from the light.
ReplyDeleteJohnny S
You should have included the data. For 10cm it was 6 bubbles, for 20cm it was 4 bubbles, and for 30cm it was 2 bubbles. The closer the plant was to the light the more it photosynthesize
ReplyDeleteYou should have included the data. For 10cm it was 6 bubbles, for 20cm it was 4 bubbles, and for 30cm it was 2 bubbles. The closer the plant was to the light the more it photosynthesize
ReplyDeleteStephen Ferraro
nice picture! but, after explaining the procedure, you should have put in what the results were. at the end of class, mr. finley told us what the class's most successful results were. that might have been more helpful for students who missed calss because the info was used for hw that night. You also should have included more info on maybe why there wasn't as many bubbles as the light moved farther away from the elodea. overall, next time maybe include a little more info because it might be necessary for the future. -nm
ReplyDelete