science, or maybe blooming geekness
Feb. 24th, 2009 10:25 am![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
astroaztecIn the latest care package from my mom was more clothing for the girls that she had purchased on one of her cruises. For the younger a Trinidad and Tobago cruise lines T-shirt and a fashion top that will fit right in with the Hannah Montana pre-teen fans at school. For the elder a leather jacket and a T-shirt that extends our knowledge of material science. The pattern on the T-shirt is white indoors, but with the UV of even the early morning sun it blooms almost instantly into bright colors. That gave us one topic for the drive to school, but it led to another.
Elder daughter reported that the teams with her and her best friend are the only ones who will not have to re-do the lab from science class. I surmised that the point of the experiment was to measure the difference in the density of cold water and hot water. The experimental technique seems to have been to weigh a beaker containing a measured amount of water. My daughter reported that she was the only one to realize that they needed to zero the scale while the empty beaker sat on it, or at least to subtract off the weight of the particular beaker being used, and that she checked in with her friend's table in time to correct their technique.
That's where the story got confusing. I really want to know exactly where the teacher was going, for the report I got indicated that my daughter's measurements of densities of around 1 and somewhat less were surprisingly low by comparison to the values of 5 or 6 that other teams were finding.
I suppose I'll get that chance, for elder daughter insists that when the subject rolls around I'm supposed to give a guest lecture to every class period.
Elder daughter reported that the teams with her and her best friend are the only ones who will not have to re-do the lab from science class. I surmised that the point of the experiment was to measure the difference in the density of cold water and hot water. The experimental technique seems to have been to weigh a beaker containing a measured amount of water. My daughter reported that she was the only one to realize that they needed to zero the scale while the empty beaker sat on it, or at least to subtract off the weight of the particular beaker being used, and that she checked in with her friend's table in time to correct their technique.
That's where the story got confusing. I really want to know exactly where the teacher was going, for the report I got indicated that my daughter's measurements of densities of around 1 and somewhat less were surprisingly low by comparison to the values of 5 or 6 that other teams were finding.
I suppose I'll get that chance, for elder daughter insists that when the subject rolls around I'm supposed to give a guest lecture to every class period.
