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
2023 World Cup Cricket
The Cricket World Cup is being played now (Octob...
The LEGO transit time
In this updated activity, s...
Free Flights?
This can't be righ...
Banana Art "Comedian"
What do you think this...
Holiday shipping
Now that the shopping season has begun, it...
Hurricanes, Typhoons, and Cyclones
Graphic from http://lagoon-inside.com[...
Monarch's are flying south again
In mid-August and early September, the M...
At least the days are getting longer
What's your guess? How fast are the ...
Which TV is the Best Deal?
Check out the TVs. All have essentially th...
How fast can you run?
Have you heard of The Six Million Dollar Man? &n...