6th: Environmental Detectives; 7th: Velocity vs. size
Posted in Daily Posts and HW on February 28, 2012 by harrison6th: We have officially begun our detective work. What is killing the fish?!? Listed on the inside of your folder, you should have your first guess marked beside a number one. Next, we looked at the history of Gray Area to determine if we could find clues. Maybe your ideas have changed now….maybe not. But remember, the Gray Area Supervisory Board wants to shut down the water slide. Good thing Juan convinced them to hold off. You also met Don Juan Tuno today – he runs Tuno Enterprises which owns the oil refinery, the cattle ranch AND the logging company. Interesting. Now, let’s begin investigating with science….
6th HW: Please list 5 things you think are getting into the water and killing the fish. We will run experiments on your choices. Helpful info posted here:
Map of Gray Area

7th: Most had a great chance to run lots of trials today. Namely, they chose a certain balloon size and measured the velocity over and over again. Do you think balloon size impacts the velocity? Find out with your homework! Even if you didn’t get your final average velocity today, you are expected to complete tonight’s homework activity. You do not have to print it, just save a copy of the excel file with the graph in your science folder. Thanks!
7th HW: Please use the following excel file to create a graph of velocity vs. balloon size. You should put the balloon size on the X-axis (right to left) and the velocity on the Y-axis (up and down). A line graph or scatter plot with a line of best fit could work.
Velocity vs. Balloon Size

