Water and Land: Pollution Pathways: Science Unit 6, Grade 12 (Letters & Devotion)

Description

Water and Land: Pollution Pathways is Unit 6 of Environmental Science: Systems, Evidence, and Choices (Part 2) (Grade 12), the Letters & Devotion Science course, complete in one printable PDF: 9 lessons, the unit check-up and the answer key, 83 pages.

• The nitrogen cycle stages (fixation, nitrification, runoff, denitrification) as they appear in a watershed diagram
• Point source vs. nonpoint source pollution classification criteria
• The source-pathway-receptor model applied to an untaught contamination scenario
• The lag between rising nutrient loading and the visible onset of eutrophication as a threshold phenomenon
• The distinction between bioaccumulation (within-organism, over time) and biomagnification (across trophic levels, at one time)
• Dose-response thresholds as receptor-dependent reference values, not intrinsic pass/fail properties of a number
• PH, turbidity, and nitrate test-strip procedure and reading technique
• An original source-pathway-receptor causal argument and remediation tradeoff for a self-collected local water sample
• The structural difference between a connected causal chain and a list of disconnected facts in a source-pathway-receptor argument

Every lesson is written for a parent with no teaching background: it opens with a short script to read aloud, names the specific wrong idea a student is likely to reach for and how to correct it, and closes with a practice sheet you may copy for your household. Scripture references are King James Version throughout. Black-and-white, 8.5 x 11 in. The whole year of this course is also in this store as a single book.

AI note: The written content of this resource was drafted with AI tools, then reviewed and edited by the author.