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
Twinkies
Brian loves Twinkies and the news that Hoste...
Cubs bury curse !
Wow! It's been a long time comin...
Happy Pi Day
6 Acti...
Curiosity landed on Mars
Keep your students up on what's happening in s...
Have a heart
Clicking on the image above will show the hear...
It's almost summer now
How much wat...
Someone ate my cake!
🍰In this updated activity, students anal...
How much should the 40-oz size cost?
We found this chalkboard menu a...
Hoarding stopped!
A Danish market found an...