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
How many cars are there?
Brian came home from work to find t...
How many athletes brought home no medal?
There must be a lot of Olympians...
How much pee is in your pool (Updated)
How much pee i...
How Much is a Tweet Worth?
These days it seems everyone is on social ...
Veterans Day, 2023
On Veterans Day we honor the men and women that ha...
Is the Electoral College fair?
Show your students this really cute se...
Barcodes and QR codes
In this updated activi...
Happy Birthday Statue of Liberty
Friday is the Statue of Liberty's 125th birt...
Do caffeinated drinks have similar amounts of jolt?
We found this interesting caffeine infogra...
Super Bowl cheesy pretzel poppers
Recipe courtesy of The Slow Roas...