TEKS 5.12B: Ecosystem Changes on Matter and Energy
Changes in an Ecosystems
About this lesson
Learning Target: I can predict how changes in an ecosystem affect the cycling of matter and flow of energy in a food web.
Focuses On:
- How matter cycles and energy flows through an ecosystem
- How changes to a food web impact it
Builds On:
4.12B:
describe the cycling of matter and flow of energy through food webs, including the roles of the Sun, producers, consumers, and decomposers
Next Level:
6.12B:
describe and give examples of predatory, competitive, and symbiotic relationships between organisms, including mutualism, parasitism, and commensalism
Read More:
This lesson is designed to support student understanding of how changes within an ecosystem, specifically to a food web, affect its stability and function.
The lesson begins with a review of energy flow, starting from the sun and following the direction of arrows in a food web, as well as how matter cycles between the nonliving environment, organisms, and decomposers. Students then analyze various scenarios to predict the effects of adding or removing a species from a food web.
This lesson builds on prior knowledge of matter and energy flow and prepares students to learn about more complex organism relationships in standard 6.12B.
Grade 5ScienceTEKS 5.12B