Comparing Experimental Results

Nice job on your improved "Lava Simulation" labs!  Let's compare our first set of lab results to our second set of lab results.
  What improvements did you make to your lab, and how did they help your experiment become more valid?

Are the results the same or different?  Write a paragraph indicating WHY your results are different.   The results are differentfrom my last graph be because this experiment is more valid.  As you can see the lines are more consitant either lowerin in time or raising.  As this experiment was done the times were very close to each other with each of the soaps they were 4 to 5 seconds are part.

Simulating Lava Procedure

After looking at our results for our last lab titled "Simulating Lava Flow", it was clear that there were hidden variables in our experiment that kept us from drawing a strong conclusion.

Your Task:
Write a procedure for the Simulating Lava Flow experiment that includes the following:
A) Tests only ONE variable (type of lava, slope of hill, ect.)
B) Eliminates hidden variables by identifying volumes, weights and lengths of materials used.
C) Uses units of measurement.
D) Is clear and replicable.



The independent vairable is the angle of the plate
The dependent variable is time in seconds

Procedure

Step 1
Get out material they are :
A beaker of 40 milliliters of dish soap
2 paper plates
a ruler

Step 2
Get the 2 paper plates and measure each distance the plate is going to be at

Step 3
line up the plate at your first distance the get the 40 milliliters of soap and pour it down the plate and time it in seconds and record on paper

Step 4
repeat step 3 at each distance

earth quake tsunami videos

 

Research and embed at least one video and news story for the 8.9 earthquake and at least one video and news story for the tsunami that followed.

 

http://gu.com/p/2nyvf

http://www.guardian.co.uk/video

Simulating Lava Flow

Last week you were asked to conduct a test to simulate lava flow using a paper plate and dishwashing soap.  You collected and graphed data, and we discussed the validity of our data in class.

Your Task:
1)  Identify the variable you changed in your experiment (the Independent Variable).
The number of trials is the indepedent variable.

2)  Identify the variable you measured in your experiment (the Dependent Variable).
The dependent variable is the time we measured had measured dish detergent by the number of secondsit took to flow down the plate.
3)  Post the graph which shows the results of your experiment.

4)  Was your experiment valid?  Why or why not?  Discuss the improvements you would have to make to increase the validity of your experiment.

no i do not think this experiment was valid because the plate might not of been in place so the time would change

Yellowstone Caldera

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Yellowstone Caldera

Yellowstone Caldera

old faithful

mud pot

geyser

Volcanic Eruptions

Yesterday, we spoke about 'underwater volcanos'.  There were quite a few questions and a few terms we added to our new "Word Wall".  Let's look more closely at this topic to decide if we would like to make it our first topic of study. 
Your Task:
Research Krakaota. 
1)  What is Krakatoa? 
a small volcanic island ; its violent eruption in 1883 was the greatest in recorded history
2)  Where did it occur?  Include a map.
in Indonesia between Java and Sumatra

3)  Make a list of at least 3 websites that you gathered information from.
http://dsc.discovery.com/convergence/krakatoa/krakatoa.html
http://www.earlham.edu/~bubbmi/krakatoa.htm
http://history1800s.about.com/od/thegildedage/a/krakatoa.htm
4)  Make a list of vocabulary terms that are related to Krakatoa and 'underwater volcanos'.
Erosion
Under water volcano
magma
fault line