Grade 1 Lesson plan
Where Does the Puddle at Whistling Pines Go? A Grade 1 Lesson
A grade 1 science lesson in three short visits: students pour a puddle on sunny blacktop, trace it in chalk, and measure it shrinking in craft-stick units.
Water Science
These materials teach earth science, chemistry, biology, and physics through water systems, from the water cycle to treatment chemistry.
654 materials · refine in the catalog
01 Choose a grade
- Kindergarten 30 materials
- Grade 1 25 materials
- Grade 2 32 materials
- Grade 3 32 materials
- Grade 4 32 materials
- Grade 5 32 materials
- Grade 6 82 materials
- Grade 7 72 materials
- Grade 8 72 materials
- Grade 9 62 materials
- Grade 10 61 materials
- Grade 11 61 materials
- Grade 12 61 materials
02 Editor's picks
Grade 10 Project
Ostlin's Drought Plan: A Spreadsheet Water Budget
A five-session grade 10 project where teams build a monthly spreadsheet water budget for a growing town, stress-test it, and choose a 15-year drought plan.
Grade 12 Lab / experiment
Quarryhill Soap Titration: Calibrating a Water Hardness Test
A grade 12 chemistry lab where students calibrate a soap titration with Epsom-salt standards, estimate tap-water hardness as CaCO3, and check it against EDTA.
Grade 12 Worksheet
Wren Hollow: A Wet-Weather Month Against Secondary Treatment Limits
A grade 12 worksheet in which students audit a fictional plant's wet February against 7-day, 30-day and 85 percent removal limits, then trace storm loads downstream.
Grade 7 Classroom activity
Crumpled-Paper Watershed: Placing Monitoring Stations to Find a Leak
Grade 7 groups swap crumpled-paper watersheds, place up to three monitoring stations, and use upstream and downstream results to find a hidden leaking site.
Grade 7 Lab / experiment
Kelby Flats Aquifer Materials: A Grade 7 Porosity and Flow Lab
A grade 7 lab where students measure porosity and soak-in time for gravel, sand, and a mix, then use a boring log to compare a sand-gravel aquifer with clay.