Lava Flows
There are two types of lava flows, free flowing mobile lava and slow
moving viscous lava.
Free flowing mobile (basaltic) lava creates a vent and spreads to
produce large broad cones called shield volcanoes.
The slow moving viscous (rhyolite) lava creates a narrow steep-sided
cone due to a different chemical composition to basalt and this makes
the lava flows more slowly down the cone side.
My Aims
My aims are to investigate the factors affecting Lava Flows. There are
lots of factors affecting a lava flow, they are:
1. Slope angle
2. Viscosity of the lava
3. Temperature of the lava
4. Slope height
5. Volume of lava
6. Roughness/smoothness of slope.
I have decided to investigate the viscosity of the lava flow. I have
chosen this because I can produce a good range of results and this
seems like it will produce the most safe, fair and accurate results.
This is very important to me.
What will the viscosity affect on the lava flow?
· Speed of the Lava
· Distance traveled from the base of the volcano (slope).
I have decided to use the speed as it will be the easiest to perform
and it will not take as long to perform. This will allow my self to
make more accurate results.
So my aim is to investigate how the viscosity of lava changes the
speed of the lava flow when purred down a shallow angle.
Prediction
I predict that the lower the viscosity the faster the lava will flow
down the slope and the lava with a higher viscosity will travel
slower.
I have predicted this because the free flowing lava acts all most like
a liquid, the particles in the lava have w...
... middle of paper ...
... I could not tell for the time. This could also be an
improvement to do, make sure that the results looks O.K. on a graph
before write up.
I think that the experiment was fair (except for the anomaly) because
I cannot see any reason for it to be unfair.
I think I was limited in only two ways:
1. I did not have enough time to do the experiment in, I could have
made sure of the anomaly.
2. Half way through the experiment I was shown a piece of apparatus
that used magnetic fields to make a small piece of metal spin inside
the beaker. This would have made the experiment more accurate and
fair.
To extend my project I could investigate all the other things I said
in my aim like:
· Slope angle
· Temperature of the lava
· Slope height
· Volume of lava
· Roughness/smoothness of slope.
If this experiment were designed to determine the amount of Fructose in a solution, describe what, if anything, would need to change in the reaction? Explain why there would or would not need to be changes. (5
5. A second test tube was then filled with water and placed in a test
There were no significant error factors that may have affected the arrangement of the lab experiment. Everything went smoothly with relative ease.
•A person will be able to squeeze a clothespin more times in a minute if the person exercises first.
The results of this experiment are shown in the compiled student data in Table 1 below.
...e been beneficial to the experiment. An error may have occurred due to the fact that measurements were taken by different individuals, so the calculations could have been inconsistent.
Possible sources of error in this experiment include the inaccuracy of measurements, as correct measurements are vital for the experiment.
8. Repeat from step 4 twice more so you end up with three results for
Going into details of the article, I realized that the necessary information needed to evaluate the experimental procedures were not included. However, when conducting an experiment, the independent and dependent variable are to be studied before giving a final conclusion.
The 1930-50’s golden era of organized labor is over and has lost the energy it had once had as a unifying factor in the lives of workers in the U.S. There are many factors to this decline, but image is very influential in the creation and influence of unions in two ways: externally and internally. Externally, the union’s ideology and actions attract workers into becoming members of a union and how government responds to a union’s beliefs and actions. Internally, union’s are run democratically, where workers choose who will represent them in negotiations with employers, which should give some benefits to the majority of the workers in the union. Organized crime's infiltration into labor unions has rotted the image of unions who represent workers looking to defend themselves against employers and achieve a stable livelihood. The history of labor and organized crime are undoubtedly linked because at times they would use each other to further their own means: the most famous of these links would have to be on James Hoffa. Organized crime and corrupt union officials influence on unions will still exists and although crackdowns throughout the decades have made some progress I doubt that they will be removed entirely from labor.
A volcano is a mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur. In another definition it is a mountain
4. Put each group of potato discs in one of the 6 test tubes and watch
Despite being in a dangerous location, the slopes of volcanoes can be attractive to people setting up homes due to the rich, fertile soil
There is also the potential of human error within this experiment for example finding the meniscus is important to get an accurate amount using the graduated pipettes and burettes. There is a possibility that at one point in the experiment a chemical was measured inaccurately affecting the results. To resolve this, the experiment should have been repeated three times.