Grade 9 Worksheet
Granite Ridge Transmission Main: Material and Pressure Class
A grade 9 engineering worksheet where students screen three pipe options for a transmission main against ranked requirements for pressure, schedule, and cost per year.
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
A grade 9 engineering worksheet where students screen three pipe options for a transmission main against ranked requirements for pressure, schedule, and cost per year.
Grade 9 Lesson plan
A grade 9 lesson where students estimate the power, yearly energy, and value of adding a small turbine to a fictional existing dam, then judge the retrofit.
Grade 9 Lab / experiment
A grade 9 lab where students run a coagulation jar test on turbid water, compare alum doses, and find the dose that clears the water best before it settles.
Grade 9 Math problem set
A grade 9 set where students convert a fictional town's river intake flow from MGD to cfs, then size a cylindrical wedge-wire screen to hold through-screen velocity down.
Grade 9 Project
A five-session grade 9 project where students design a backup supply for a fictional mountain water district under a fixed budget and a minimum pressure requirement.
Grade 9 Project
A grade 9 project where teams design a rainwater and greywater reuse system for a fictional school, sized to a runoff target and held to a fixed budget.
Grade 9 Worksheet
A grade 9 worksheet on a fictional water main replacement where students find the thrust at a bend under test pressure and size the concrete block that resists it.
Grade 9 Lesson plan
A 55-minute grade 9 lesson where students separate criteria from constraints for a fictional town's iron and manganese well, then size the filter vessels it needs.
Grade 9 Quiz & test questions
A grade 9 test on a fictional water system covering tank volume, pressure from head, demand conversion, and fire-flow reserve, with choice and computation items.
Grade 9 Worksheet
A grade 9 worksheet where students size a drip system for a fictional community farm plot, finding flow, run time, and the water it saves over sprinklers.
Grade 9 Math problem set
A grade 9 set that sizes a fictional granular activated carbon vessel for PFAS removal, using cylinder volume, empty bed contact time, and bed volumes.
Grade 9 Math problem set
A grade 9 set where students build a dry-year water budget for a fictional reservoir, converting MGD to acre-feet and solving for the years left before dead pool.
Grade 9 Worksheet
A grade 9 worksheet where students size a constructed treatment wetland for a fictional small community, finding area, removal efficiency, and detention time.
Grade 9 Worksheet
A grade 9 worksheet sizing a pH neutralization tank for a fictional plating shop, covering detention time, tank geometry, caustic use, cost, and a permit check.
Grade 9 Lesson plan
A grade 9 lesson where students run a water balance for a fictional utility, find non-revenue water, and test whether a leak-detection program pays for itself.
Grade 9 Lesson plan
A 50-minute grade 9 lesson where students break a fictional plant upgrade into six work packages, match each to the role that leads it, and write criteria for two.
Grade 9 Lab / experiment
A grade 9 lab where students hold head constant and measure how tubing length and inner diameter change delivered flow, then apply the result to a fictional town.
Grade 9 Math problem set
A grade 9 set on a fictional district adding orthophosphate after a high lead result, using the pounds formula to size the feed, the day tank, and the yearly cost.
Grade 9 Quiz & test questions
A 35-point grade 9 unit test on a fictional plant upgrade, mixing criteria and constraint items with detention time, chemical feed, filter loading, and pressure math.
Grade 9 Math problem set
A grade 9 engineering set on a surface water plant: students size a sedimentation basin's detention time, a filter loading rate, and a chlorine feed in pounds per day.
Grade 9 Math problem set
A grade 9 engineering problem set on a booster pump station: students find total dynamic head, discharge pressure, flow conversions, and tank fill time.
Grade 9 Lab / experiment
A grade 9 engineering lab where students build a gravel, sand, and charcoal filter column, then test it by measuring water clarity and flow rate across two trials.
Grade 9 Project
A grade 9 engineering project where teams design a four-stage drinking water treatment train for a fictional town within a flow, footprint, and budget.
Grade 9 Math problem set
A grade 9 engineering set on a seawater reverse osmosis plant: students find permeate and concentrate flows, membrane flux, a concentration factor, and daily energy.