Use a mathematical representation to support claims for the cycling of matter and flow of energy among organisms in an ecosystem.
Standard detail
HS-LS2-4
Performance Expectation
Depth 2Parent ID: EA1F5DD0DFE60131CA6168A86D17958EStandard set: Grades 9, 10, 11, 12
Original statement
Quick facts
- Statement code
- HS-LS2-4
- Standard ID
- EA1FC1D0DFE60131CA6268A86D17958E
- ASN identifier
- S2454568
- Subject
- Science
- Grades
- 09, 10, 11, 12
- Ancestor IDs
- EA1F5DD0DFE60131CA6168A86D17958EEA1EEEB0DFE60131CA6068A86D17958E
- Source document
- Next Generation Science Standards (2013)
- License
- CC BY 3.0 US
- Dataset notes
Clarification Statement: Emphasis is on using a mathematical model of stored energy in biomass to describe the transfer of energy from one trophic level to another and that matter and energy are conserved as matter cycles and energy flows through ecosystems. Emphasis is on atoms and molecules such as carbon, oxygen, hydrogen and nitrogen being conserved as they move through an ecosystem.
Assessment Boundary: Assessment is limited to proportional reasoning to describe the cycling of matter and flow of energy.