Photosynthesis comic

Photosynthesis "Dry Lab"

What you will need: One snail, 5 drops of bromothymol blue, a test tube of water,and an aquarium plant.

1. combine five drops of bromothymol blue with water in the test tube.
-Record your observations on what the water looks like.

2. After you have recorded your observations, drop the snail into the now blue-green water. After one minute discribe what the water looks like.

3. Next,remove the snail and combine the bromothymol blue, and drop in the aquarium plant.
What color is the water with the objects in it in the light look like?

4. Combine the bromothymol blue, plus the snail.
-Record what it looks like in the light
-next put the experiment in the dark for about three hours (closet, dark room)

5. Take your water out of the dark room
-What is the color of the water now? why do you think the water did what it did?

Conclusion:
1. Water plus bromothymol blue is blue-green because bromothymol blue plus blue-green liquid changes to a yellow color.
2. The aquarium snail turns yellow because animals respire carbon dioxide in water produces carbonic acid and that acid changes the color yellow.
3. Bromothymol blue and the plant in water turns blue-green in light because water plus sugar and oxygen turn a blue green when light is present. Green plants photosynthesize in the light and respire all the time.
4. Green plants photosynthesize in the light all the time so if the plant is in the dark for three hours the snail changes to yellow because the plant has nothing to give energy out to in the dark.  With out the carbon dioxide in water cannot yield sugar and oxygen, therefore there is no chlorophyll and sunlight to make the plant green.


Questions:
1. Can other animals that breath through their skin do this in an experiment?
2. Why is it that only carbon dioxide turns the water yellow?
3. Do all plants breath under the water too?

Enzyme Action Lab!!! :)

Considering I was with all boys for this Enzyme lab things went quite well. I was fascinated how the yeast had the most action in room temperature, my hypothesis was that the yeast would have the most increase when the yeast was in the hot water. I also thought that it was weird how the temperature on some of these stayed constant then dramatically dropped like the graph on the left shows.
It was a lot easier to use the different colors to tell which experiment was which. Like the graph below you can see all of my groups data  organized and put into different colors.

As you can see the on the blue graph above we had an extraordinary increase in activity with the temperature. It increased about .04 and .05 slope the higher the temperature got. Then with a dramatic drop in the slope when it hit 80 degrees Celsius. With this, our graph changed dramatically but it showed that our experiment stayed constant for a bit.

I liked using the microscopes that you can record your experiments on our Mac Books to graph. It helps me to learn how and why each experiment reacted in different and similar ways. Such as with the graph on the right.As you can see on the right PH 4 and PH 10 enzymes worked best since there was more activity with their slope being 0.17. PH7 enzymes worked the worst and was 0.12 with low activity.

Sarin, a deadly poison :(

Sarin is a deadly poison, it is human-made and can be found in water, cloths, and food. In the 1980's this chemical was used in the Iran-Iraq war and later was used in two Japan terrorist attacks in 1994 and 1995. Since this poison mixes easily in water, anyone who drinks or even touches this poison water will die within a few hours. When cloths come in contact with Sarin it takes only 18 hours to take affect to the body. The nerve agents cause Sarin's toxic effects by preventing the proper operation of the chemical that acts as the body’s “off switch” for glands and muscles. Without an “off switch,” the glands and muscles are constantly being stimulated. When Sarin enters the body the it presents an immediate but short lived threat. The symptoms of Sarin are: Runny nose, eye pain, blurred vision, cough, and drooling. Even a small drop of Sarin n the skin can cause nerve damage. Almost all cases of Sarin poison have killed it's victims. 


Source here