2023-11-20 09:44:30
Green, green river
Green, green river
During the St. Patrick's Day parade in Chicago, the local plumbers union dyes the Chicago River emerald green.
Students learn what PPM (parts per million) means and attempt to figure out how much dye is used to sufficiently color the river.
Comments (0)
Display 1 - 10 Of total 0
Saving Water Bottles
In my grocery store they ...
New baby giraffe
Willow at Baltimore, MD Zoo
Willow ...
Population Clock
How in the world does this clock conclude that...
Stock Market headlines - Biggest losses since 2008
This year the Dow Jones Industrial Average m...
Point of view
If you have a set of cubes for your classr...
The Moroccan Earthquake and the Richter scale
Friday evening, September 8th, a powerfu...
The Scale of Things
🌎In this ...
Fine
TJ Watt was fined for roughing the ...
The huge costs behind the Olympics
Hosting the Olympic Games is extremely expen...