ALEX Classroom Resource

  

Ecosystem Services - Water Purification

  Classroom Resource Information  

Title:

Ecosystem Services - Water Purification

URL:

http://sciencenetlinks.com/lessons/ecosystem-services-water-purification/

Content Source:

Science NetLinks
Type: Lesson/Unit Plan

Overview:

This lesson is about how ecosystems purify water and human activities that can alter these processes. It also discusses the value of the natural water purification service to humans. The take-home message is that the key to maintaining water purification services is to protect and restore the ecosystems that provide these services. 

Content Standard(s):
Science
SC2015 (2015)
Grade: 7
Life Science
7 ) Use empirical evidence from patterns and data to demonstrate how changes to physical or biological components of an ecosystem (e.g., deforestation, succession, drought, fire, disease, human activities, invasive species) can lead to shifts in populations.


NAEP Framework
NAEP Statement::
L8.8a: All organisms cause changes in the environment where they live.

NAEP Statement::
L8.8b: Some of these changes are detrimental to the organisms or other organisms, whereas others are beneficial.


Unpacked Content
Scientific And Engineering Practices:
Analyzing and Interpreting Data
Crosscutting Concepts: Stability and Change
Disciplinary Core Idea: Ecosystems: Interactions, Energy, and Dynamics
Evidence Of Student Attainment:
Students:
  • Use information gained from data patterns and analysis to demonstrate that any change in an ecosystem can lead to shifts in populations.
Teacher Vocabulary:
  • Empirical evidence
  • Patterns
  • Data
  • Ecosystem
  • Populations
  • Physical components (e.g., water, air, temperature, sunlight, soil, etc.)
  • Biological components (e.g., plants, animals, etc.)
  • Phenomena (e.g., deforestation, succession, drought, fire, disease, human activities, invasive species, etc.)
Knowledge:
Students know:
  • Ecosystems are dynamic in nature and can change over time.
  • Disruptions to any physical or biological component of an ecosystem can lead to shifts in all its populations.
  • Changes in the physical or biological components of an ecosystem (e.g., rainfall, species introduction) can lead to changes in populations of species.
Skills:
Students are able to:
  • Demonstrate the scientific idea that changes to physical or biological components of an ecosystem can affect the populations living there.
  • Identify and describe the given evidence needed to demonstrate the scientific idea that changes to physical or biological components of an ecosystem can affect the populations living there.
  • Evaluate the given evidence, identifying the necessary and sufficient evidence for supporting the scientific idea.
  • Use reasoning to connect the evidence and support an explanation using patterns in the evidence to predict the causal relationship between physical and biological components of an ecosystem and changes in organism populations.
Understanding:
Students understand that:
  • Changes in the amount and availability of given resource may result in changes in the population of an organism.
  • Changes in the amount or availability of a resource may result in changes in the growth of individual organisms.
  • Resource availability drives competition among organisms, both within a population as well as between populations.
  • Resource availability may have an effect on a population's rate of reproduction.
AMSTI Resources:
AMSTI Module:
Investigating Biodiversity and Interdependence
Studying the Development and Reproduction of Organisms

Alabama Alternate Achievement Standards
AAS Standard:
SCI.AAS.7.7- Interpret data to see how changes in an ecosystem (e.g., drought, forest fires) affect the animal population in an area.


Science
SC2015 (2015)
Grade: 7
Life Science
9 ) Engage in argument to defend the effectiveness of a design solution that maintains biodiversity and ecosystem services (e.g., using scientific, economic, and social considerations regarding purifying water, recycling nutrients, preventing soil erosion).

Unpacked Content
Scientific And Engineering Practices:
Engaging in Argument from Evidence
Crosscutting Concepts: Stability and Change
Disciplinary Core Idea: Ecosystems: Interactions, Energy, and Dynamics
Evidence Of Student Attainment:
Students:
  • Argue using evidence to support claims of the effectiveness of the design solution.
Teacher Vocabulary:
  • Evidence
  • Engineering design process
  • Design solution
  • Biodiversity
  • Ecosystem
  • Ecosystem service
  • Scientific argument
  • Criteria
  • Constraint
  • Economic considerations
  • Social considerations
  • Recycling nutrients
  • Soil Erosion
  • Water Purification
Knowledge:
Students know:
  • Evidence about performance of the given design solution. Biodiversity describes the variety of species found in the earth's ecosystems.
  • The completeness of the biodiversity of an ecosystem is often used as a measure of health.
  • Changes in biodiversity can influence humans' resources and ecosystem services.
Skills:
Students are able to:
  • Identify and describe a given design solution for maintaining biodiversity and ecosystem services.
  • Identify and describe the additional evidence (in the form of data, information, or other appropriate forms) that is relevant to the problem, design solution, and evaluation of the solution.
  • Collaboratively define and describe criteria and constraints for the evaluation of the design solution.
  • Use scientific evidence to evaluate and critique a design solution.
  • Present oral or written arguments to support or refute the given design solution.
Understanding:
Students understand that:
  • There are processes for evaluating solutions with respect to how well they meet the criteria and constraints.
AMSTI Resources:
AMSTI Module:
Investigating Biodiversity and Interdependence

Alabama Alternate Achievement Standards
AAS Standard:
SCI.AAS.7.9- Identify human behaviors that are harmful to the environment; compare the effectiveness of various solutions to these problems (e.g. recycling, preventing soil erosion, organic gardening).


Tags: ecosystem, human impact, water purification
License Type: Custom Permission Type
See Terms: https://www.aaas.org/terms-of-use
For full descriptions of license types and a guide to usage, visit :
https://creativecommons.org/licenses
Accessibility
Comments
  This resource provided by:  
Author: Stephanie Carver