Grade 9 Classroom activity
Wickhollow Main Break: A Valve Isolation Simulation
A 45-minute grade 9 activity where crews of students isolate a break on a fictional water main, count customers cut off, and size the flushing and disinfection work.
Water Science · Grade 9
These materials teach earth science, chemistry, biology, and physics through water systems, from the water cycle to treatment chemistry.
61 materials written for this grade · refine by type, topic, or standard in the catalog
Grade 9 Project
The Aldwinter High Water Audit: Finding the Standing Leak
A four-session grade 9 project where students meter their school's overnight water use, test one low-cost fix, and propose retrofits to a fictional facilities director.
Grade 9 Lesson plan
Bickerstaff Lake Swim Advisory: Reading Bacteria Counts
A 50-minute grade 9 lesson where students summarize bacteria sample data from two fictional beaches and decide whether the county should post a swim advisory.
Grade 9 Classroom activity
Frost Wedging and Winter Main Breaks in Grangemoor
A grade 9 four-station rotation investigating why water expands on freezing and how frost depth, not air temperature alone, drives a city's winter main breaks.
Grade 9 Writing prompt
How Draining Cawthorne Marsh Changed Drumlane's Water
A grade 9 science explanatory prompt where students use a fictional monitoring table to explain how draining a marsh changed floods, summer flow, and temperature.
Grade 9 Debate kit
Where Ivenden's Concentrate Goes: River or Injection Well
A grade 9 science debate kit on whether a fictional brackish water plant should send its salty reverse osmosis concentrate to a river or into a deep injection well.
Grade 9 Classroom activity
Kestrelford Wellfield: A Sand-Tank Groundwater Model
A 50-minute grade 9 activity where student teams build a sand-tank aquifer, trace dye toward a stream, then pump a well and watch the flow direction reverse.
Grade 9 Lesson plan
Ravenscarr's Wells and Ellinmere Brook: Where Baseflow Goes
A 55-minute grade 9 lesson where students convert well pumping rates to stream units and trace how pumping a shallow aquifer lowers a brook's late-summer flow.
Grade 9 Reading passage
Water From Beside the River: Riddlesworth's Collector Wells
A grade 9 science reading passage on riverbank filtration, in which a fictional town stops pumping from the river and draws water through the sand beside it.
Grade 9 Writing prompt
Should Vanbrough Chlorinate Its Wells? An Argument Prompt
A grade 9 science argument prompt where students take a position on whether a fictional groundwater town should begin chlorinating its three deep wells.
Grade 9 Debate kit
Stock Trout or Plant Shade Along Tessleton Brook
A grade 9 science debate kit on whether a fictional county should spend its stream grant on stocking trout each spring or on shade trees and floodplain reconnection.
Grade 9 Worksheet
Ashvale Reclamation Plant: BOD Loading and Removal Efficiency
A grade 9 science worksheet using the pounds formula and removal-efficiency formula on a fictional plant's flow to judge how well it cleans wastewater.
Grade 9 Lesson plan
Tiered Water Rates in Braemoor: A Grade 9 Conservation Lesson
A 50-minute grade 9 lesson where students compute household bills under an increasing-block water rate and analyze how tiered pricing rewards conservation.
Grade 9 Lesson plan
Bramble Cove's Salty Wells: Modeling Saltwater Intrusion
A 50-minute grade 9 lesson using the 40-to-1 freshwater head rule and a mixing calculation to explain why summer pumping turns a fictional coastal town's wells salty.
Grade 9 Reading passage
PFAS in Brindle Falls' Wells: Rules Still Being Written
A grade 9 science reading passage on PFAS, the 2024 federal limits and a proposed deadline exemption, and how a fictional town treated a contaminated well with carbon.
Grade 9 Reading passage
The Buried Network: Why Water Pipes Are Aging
A grade 9 science reading passage on the hidden network of aging water pipes, the cost of replacing them, and how a utility decides which pipes to fix first.
Grade 9 Worksheet
Water Hardness Testing at Calderwood: A Grade 9 Titration Worksheet
A grade 9 worksheet where students turn drop-count titration readings into water hardness in mg/L as calcium carbonate, classify samples, and find percent removal.
Grade 9 Lab / experiment
Chalkwell's Karst Springs: A Limestone Dissolution Lab
A grade 9 lab where students measure chalk mass loss in three solutions, then use spring flow and hardness to calculate the limestone a fictional karst aquifer removes.
Grade 9 Quiz & test questions
Cindermill's Next Water Source: Supply Gap, Reuse, and Cost per MGD
A 40-point grade 9 quiz on a fictional city's water supply gap, mixing multiple choice, computation, and short answer across reuse, wells, energy, and cost per MGD.
Grade 9 Lesson plan
Cobble Flats Irrigation: Water, Energy, and the Cost of Efficiency
A 55-minute grade 9 lesson comparing furrow and center-pivot irrigation on a fictional farm, testing whether the water and energy savings pay for the new system.
Grade 9 Quiz & test questions
Water Cycle and Watersheds: A Grade 9 Earth Systems Test
A 25-point grade 9 assessment on the water cycle and watersheds, mixing multiple-choice, short-answer, and one runoff computation item on Earth's connected systems.
Grade 9 Worksheet
Copperfield Commons: Stormwater Runoff and the Rational Method
A grade 9 worksheet using the rational method to show how paving a fictional site raises peak stormwater runoff into a creek, and how green infrastructure lowers it.
Grade 9 Worksheet
Corvale's PFAS Pilot: GAC Removal Efficiency Worksheet
A grade 9 science worksheet on a fictional town's activated-carbon pilot, where students calculate PFAS removal efficiency and compare treated water to the federal limit.
Grade 9 Reading passage
Old Water: Residence Time and the Cypress Bench Aquifer
A grade 9 science passage on how fast water moves through parts of the water cycle, and why a town that depends on a slow-recharging aquifer must plan for the long term.