Saturday, March 2, 2013

New Plan- February 28


Note: This post was orignially meant to posted earlier in the week. However, I, the group blog admin, accidently saved it as a draft instead of publishing it. This post was actualluy dated February 28.

We were discussing our lab during school , and we realized something important. The original silly putty  experiment only tested whether or not silly putty was polar or non polar. After a pause, we realized this was a poor experiment.

After some research and discussion, we have come up with a second, better experiment. The experimental procedure is as follows.



Celery and Water: An Experiment

Materials: 25 stalks of celery, 5 volumetric flasks, 4 hot plates, food coloring, thermometer, labquest.

Get 5 containers of the same dimensions and material

Fill each container with water, then dye the water with food coloring

Place one in the room normally, and 4 on hotplates at different temperatures.

get a thermometer (labquest)

Record the initial temperature of each cup of water until they stabilize.

Place 5 stalks of celery in each container.

Wait 1 hour.

Take out each celery and perform a cross section of each stalk to see how far up the colored water has traveled.

Record this data.

Indepenedent variable: Temperature of the water in each container.

Dependent variable: How far up the stalks the water has traveled.

Control: The celery that are at room temperature.

Hypothesis: Heating up the water of the celery containers will speed up the diffusion process.

Friday, March 1, 2013

Some last minute changes have been made, but other than that...

We realized we were unable to do simultaneous temperature treatments of the celery (stupid bureaucracy!), so we had to adjust the procedure a bit. We will probably be 6 hours at the school. Anyway, Connor and Faith gathered the supplies, and I printed out the procedure, so we are good to go.


The end forever.