Grade 7 Worksheet
Dellwood's PFAS Cleanup: Percent Removal and Well Blending
A grade 7 science worksheet where students read a town's PFAS results in parts per trillion, find percent removal by a carbon filter, and blend wells to meet the limit.
Water Science · Grade 7
These materials teach earth science, chemistry, biology, and physics through water systems, from the water cycle to treatment chemistry.
67 materials written for this grade · refine by type, topic, or standard in the catalog
Grade 7 Lesson plan
A Day at the Elmsworth Water Lab: Reading Sample Results
Students work a fictional technician's sample log, judge turbidity, chlorine, and pH results against published limits, and learn how operator licensing works.
Grade 7 Worksheet
Fernvale Middle School Leak Hunt: Drips, Flow Rates, and Waste
A grade 7 worksheet in which students track dripping faucets and showerhead flow at a fictional school and use proportions to total yearly water waste.
Grade 7 Reading passage
What Gantry Dam Changed Downstream: A Grade 7 River Reading
A grade 7 science reading passage on how a dam changes the river below it, from blocked fish migration and lower oxygen to trapped sediment and a steadier flow.
Grade 7 Math problem set
Graymoor's Sedimentation Basin: Volume and Detention Time
A grade 7 science problem set on a fictional plant's settling basin: students find its volume in gallons, its detention time, and the percent of turbidity removed.
Grade 7 Reading passage
Why Buried Water Pipes Break, and What It Costs to Fix Them
A grade 7 science reading passage on aging water pipes, using a report-card table and national repair-cost figures so students cite evidence about infrastructure.
Grade 7 Math problem set
Harlow Heights Roof Runoff: A Rain-Capture Problem Set
A grade 7 science problem set on a fictional school's rooftop rain capture, finding runoff gallons, cistern percent captured, and how surface type changes runoff.
Grade 7 Reading passage
From Sludge to Fertilizer: Kenniston Recovers Its Phosphorus
An informational passage about a fictional treatment plant that pulls phosphorus out of wastewater, turns it into fertilizer pellets, and protects a river's oxygen.
Grade 7 Worksheet
Kessler Creek Nutrients: When a Fertilizer Becomes a Pollutant
A grade 7 science worksheet using fictional Kessler Creek data: students compute percent change in nitrogen and phosphorus and trace how excess nutrients lower oxygen.
Grade 7 Lesson plan
Larch Basin's Water Cycle: Where Water Waits and How Long
A 45-minute grade 7 lesson where students model the water cycle driven by sun and gravity, then use a 1,000-marble jar to picture how Earth's water is split.
Grade 7 Lesson plan
Lindenmoor School Rain Garden: A Grade 7 Stormwater Runoff Lesson
A 50-minute grade 7 lesson where students calculate roof runoff and compare pavement to planted ground to design a school rain garden that cuts stormwater.
Grade 7 Math problem set
Marchford's Water Loss Audit: Percent Lost Between Plant and Tap
Ten problems comparing what a fictional city's plant produces with what its meters record, finding the percent lost to leaks and what a repair program recovers.
Grade 7 Worksheet
Marren Falls Well Water: Hardness Testing and Percent Softening
A grade 7 science worksheet where students classify the hardness of two Marren Falls wells and calculate the percent of hardness a softener removes.
Grade 7 Worksheet
Ormsby Brook Dissolved Oxygen: A Grade 7 Fish Habitat Worksheet
A grade 7 science worksheet where students read dissolved-oxygen and temperature data from a cold-water stream and find when the water drops below the level fish need.
Grade 7 Worksheet
Oster Grove Paves a Field: Stormwater Runoff and Percent Change
A grade 7 science worksheet where students compare stormwater runoff from a grass field and a parking lot, using the runoff formula and percent change.
Grade 7 Classroom activity
Pentworth's PFAS Stations: Bond Models and Carbon Filters
A four-station rotation where students build carbon-fluorine models, compare well results with the 4.0 ppt limit, and test activated carbon against sand.
Grade 7 Lab / experiment
Perrin Bay Solar Still: Pulling Fresh Water Out of Salt Water
A grade 7 science lab where students build a solar still that evaporates and condenses salt water, measure the fresh water collected, and calculate percent yield.
Grade 7 Classroom activity
Keep Pinehaven Flowing: A Water Tower and Demand Simulation
A grade 7 role-play where students act as a town's water tower, pumps, and neighborhoods to keep the tank from running dry across a simulated 24-hour demand cycle.
Grade 7 Worksheet
Quarry Bend's Reverse Osmosis Unit: Percent Removal and Recovery
A grade 7 science worksheet on a fictional town's under-sink reverse osmosis unit: students calculate percent of dissolved solids removed and the unit's water recovery.
Grade 7 Lesson plan
Quill Weir Fish Passage: Comparing Three Design Options
A grade 7 lesson in which students score three fish passage options at a fictional mill weir on percent of trout passing, cost per fish, and the town's water intake.
Grade 7 Classroom activity
Redfern Reservoir Sampling: A Representative-Sample Simulation
A grade 7 science activity where students draw bead samples from a model reservoir to see why water monitoring needs random, representative samples, not one biased scoop.
Grade 7 Lesson plan
Sizing the Rennick Canal: A Flow, Area, and Velocity Lesson
A 50-minute grade 7 science lesson where students use flow equals area times velocity to size a fictional canal and reason about how area and speed change flow.
Grade 7 Worksheet
Sannox Ridge Snowpack: Snow Water Equivalent and Spring Runoff
Students turn snow depth and density readings from a fictional mountain basin into snow water equivalent, forecast spring runoff, and model the path to a reservoir.
Grade 7 Lab / experiment
Which Ground Soaks Up Rain? A Schoolyard Infiltration Lab
A grade 7 lab where students pour water through gravel, sand, and packed soil, time the drain, and compute infiltration rates for runoff and recharge.