Grade 9 Lesson plan
Ranking Water Main Replacements with a Decision Matrix
A 50-minute grade 9 engineering lesson where students build a weighted decision matrix to rank three aging water mains for replacement under a limited budget.
Water Engineering & Design · Grade 9
Students take on design and testing challenges drawn from real infrastructure, including filters, towers, dams, and stormwater improvements, with budgets and constraints.
29 materials written for this grade · refine by type, topic, or standard in the catalog
Grade 9 Worksheet
Reed Valley Wastewater Plant: Removal Efficiency Worksheet
A grade 9 engineering worksheet on a wastewater plant: students compute BOD and TSS removal efficiency and pollutant loads and check them against the secondary standard.
Grade 9 Quiz & test questions
Sable Point Water System: Treatment and Hydraulics Test
A grade 9 engineering unit test worth 30 points, mixing multiple-choice, short-answer, and computation items on head, pressure, flow, detention, filters, and removal.
Grade 9 Lesson plan
Sizing a Parking Lot Bioretention Cell by the Rational Method
A 55-minute grade 9 engineering lesson where students use the rational method to find parking lot runoff, compare it with lawn, and size a bioretention cell.
Grade 9 Project
Cotton Bend Brackish Well: A Reverse-Osmosis Pilot Design Project
A grade 9 engineering project where teams design a reverse-osmosis pilot system for a brackish well, budgeting cost, capacity, and energy for a fictional water district.