Post on 24-Feb-2016
description
Problems and Possible Solutions
7th Grade – Green Week
ProblemSituation that is harmful or
unwelcome (needs to be dealt with)
SolutionMeans of solving a problem or dealing
with a difficult situation
Why do we say possible solution?
Water Treatment
Water goes down the drain
Interceptor Sewer
Wet Well and Main Pump
Bar Screens Grit Chambers
Removing Small Particles
Final Cleaning and Outfall
What’s the problem?
Bar Screens Grit Chambers
Odor Control
Sludge Dewatering
Lime Stabilization
What’s the problem?
What was the solution?
Reading: CompostWith a partner read and underline the Compost reading.
During the reading think about what ingredients you would need to make compost. This will be your evidence
during the next activity.
Build your compost pileThe cup with serve as your compost container.Use the ingredients to “build” your pile.Record all the ingredients you put in the pile.Make sure you have evidence for each
ingredient you add to your pile.Record your evidence and reasoning. Be ready
to share and defend your compost pile ingredients.
Compost Pile
Ingredients + Evidence + Reasoning
Ingredients + Evidence + Reasoning
Ingredients + Evidence + Reasoning