Monday, April 19, 2010
qwerty :)
i have finished by climate graph!yay!
but i don't feel like putting it up at the moment :(
so yeah....
Sunday, April 18, 2010
A graph about climate (reminds me of 'hakuna matata' for some weird reason...)
"Good graphs are like good jokes (they don't need to be explained)"
ha ha... pretty funny huh?
Anyways.. dharani just wanted to say that she is going to do her climate graph NOW...now!...okay fine...NOW!!!!!!!!!!!!!!!
*guess what?...you can feed the fish at the bottom by clicking anywhere in their "tank"(WARNING:This can also be adicting)and just in case you don't realise youself, the fish follow the cursor!
okay byeeee : )
ha ha blogging is fun... and addicting!
Friday, April 16, 2010
this IS the LAST time i'm going to do this!
The experiment is to determine which soil is the most absorbant and that the more viscous(meaning: having a reletively high resistance to flow) pollutant would be most absorbant.
Equipment: Soils (sand and clay), pollutants (oil, petrol and engine coolant), 30 plastic cups, plastic filter, measuring cup and stopwatch.
Method: Place the plastic filter on the cup making sure that it won't fall off. Put 250 mg of sand in the filter and measure out 250 mL of oil in the measuring cup. Then pour oil onto the sand and let the oil be filtered for 60 seconds. When 60 seconds is over remove the filter and record the amount of oil is in the cup on a table then subtract this number by 250 mL to find out how much of the oil is actually absorbed by the sand. Record this number on the table as well. Repeat these steps with petrol and sand and again with engine coolant and sand. Now, repeat the steps with clay. After, repeat all the steps above twice to make sure the results are acurate. (This may be a little time consuming...)
The independent variable are the pollutants and the types of soil
The dependent variable is the amount of absorption
The constants are the filter used, the amont of soil, the amounof pollutant, how long the soil will be filtered for and the temperature of the pollutants (room temperature)
I have got to control myself and not change my mind about this experiment (ha ha! get it CONTROL!)
hope this gets approved... good luck dharani
love dharani (off to email Ms. Zhang!)
Thursday, April 15, 2010
I think i should stop changing my idea but i just WON'T listen to myself!
Equipment : an orange, a potato, a lemon, a cucumber, a banana, a light bulb, a few aligator clips and two metal electrodes.
Method: Insert the two metal electrodes parallel to and about 1cm away from each other. Then connect one electrode to a light bulb with an aligator clip. Next connect the light bulb to a battery and the battery to the other electrode. Repeat these steps with the potato, lemon, banana and cucumber.
The independent variable is the fruit/vegetable that is included in the circuit.
The dependent variable is the whether or not the light bulb lights up or not.
The controlled variables are how far apart the two electrodes are situated, the type of battery being used and the light bulb being used.
Hopefully this experiment will get approved because i REALLY want to do it
waiting in hope...dharani
Wednesday, April 14, 2010
Hmmmm.......
- To see whether a few fruits and veggies conduct electricity
- To investigate whether the shell of an egg dissolves when the egg is put in vinegar
- To see whether a potato grows inside of a closed shoebox with a hole on one side
- To see which solvents are better preservatives
I have chosen to do the fourth option. To do this i will need: four clear drinking glasses, water, a chicken bouillon cube, salt, white vinegar, sugar, a measuring cup and a measuring spoon.
I am planning to dissolve the chicken bouillon cube in a cup of hot water and then dividing the solution equally into the three clear glasses. I will then put one teaspoon of salt into one of the glasses, one teaspoon of vinegar in another glass and a teaspoon of sugar in the third glass. The glass with nothing extra in it will be my control as it doesn't have any preservatives in it. I will then leave each of the glasses in a warm spot for a week, noting the observations i make daily so i can see how much the solutions have changed.
Th independent variable is the preservative that i put in the chicken bouillon-water solvent.
The dependent variable is the how 'cloudy' the solution becomes over the week.
The controlled variables are the amount of chicken bouillon-water solvent, how much of each preservative i use, where i put the glasses and how long the glasses are kept out.
I really, really, really hope that Ms Zhang approves my experiment... finger, toes, arms, legs, hair, body... basically everthing crossed that she does... or else dharani is in real trouble.
well..good luck dharani!