Please Help! Science!
Lab Cloud formation
(Things needed for the experiment, watch, plastic container- 2L clear plastic bottle, beaker, 400ml, matches)
1.) Complete the following table based on the observations you made during the lab.

Experiment Observations

Cold water :
Cold water plus match:
Hot water:
Hot water plus match:

2.) Why do you think the presence of smoke contributed to cloud formation?



3.) What role did pressure play in the formation of the clouds?



4.) Based on what you have discovered, which of the following conditions would lead to the formation of clouds?

1. Moist air moves up as it encounters a mountain range.
2. High pressure is moving into an area.
3. The air over a large parking lot is warmer in the afternoon than the surrounding park is.
4. The horse latitudes are areas of sinking air.
5. Low pressure moves into your area.



(please do not answer unless you have the answer! if you need points I'll do something else to give you points but I really need these answered)

Which best example best demonstrates the importance of having knowledge of evolutionary relationships? a. illustration of a plant b.organ transplantation between species c. blood donation from a human d. do you need sequence of an insect.

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Astudent from one of the research labs is having trouble preparing a slide for examination and photographing. the bacterial slide that he has brought to you was prepared using a commercially purchased stain. he has asked for your in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. after examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium. which of the following statements does not explain the fact that there are no bacteria present on the student’s slide? by not allowing a glass slide to completely air dry before heat fixation, the flame will cause the surrounding water to boil and this will damage the bacterial cell. overheating during the fixation step boiled the water within the bacterial cells and resulted in the cells bursting. insufficient heating of the slide did not drive out the thin layer of water and this resulted in minimal bonding between the bacteria and the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide.