LS2- Matter cycles and energy flows through an ecosystem.


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NECAP Items:
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Click on the GSE numbers, e.g PS1 (K-2) - POC - 2, in the table below to reach additional information about each GSE.

Grade Span Expectations (K-4)


Grade Span Expectations (5-8)

Grade Span Expectations (HS)


LS2 (K-2) - 6
Students demonstrate an understanding of food webs in an ecosystem by …

6a acting out or constructing simple diagrams (pictures or words) that shows a simple food web.

6b using information about a simple food web to determine how basic needs (e.g. shelter and water) are met by the habitat/environment.

LS2 (3-4) - 6
Students demonstrate an understanding of food webs in an ecosystem by …

6a demonstrating in a food web that all animals’ food begins with the sun.

6b using information about organisms to design a habitat and explain how the habitat provides for the needs of the organisms that live there

6c explaining the way that plants and animals in that habitat depend on each other.

LS2 (5-6) - 6
Students demonstrate an understanding of energy flow in an ecosystem by …

6a identifying the sun as the major source of energy for life on earth and sequencing the energy flow in an ecosystem.

6b. describing the basic processes and recognizing the substances involved in photosynthesis and respiration.

LS2 (7-8) - 6
Students demonstrate an understanding of energy flow in an ecosystem by …

6a explaining the transfer of the sun’s energy through living systems and its effect upon them.

6b describing the basic processes and recognizing the names and chemical formulas of the substances involved in photosynthesis and respiration.

6c explaining the relationship between photosynthesis and respiration.

Students demonstrate an understanding of food webs in an ecosystem by …

6d creating or interpreting a model that traces the flow of energy in a food web.

LS2 (9-11) - 4
Students demonstrate an understanding of matter and energy flow in an ecosystem by …

4a diagramming the energy flow in an ecosystem that compares the energy at different trophic levels. (e.g. What inferences can you make about energy “loss”& use?).

4b explaining how the chemical elements and compounds that make up living things pass through food webs and are combined and recombined in different ways (e.g. nitrogen, carbon cycles, O2, & H2O cycles).

Example Extension(s)
LS2 (Ext) - 4
Students demonstrate an understanding of matter and energy flow in an ecosystem by …

4aa explaining the energy transfer with cells in photosynthesis and cellular respiration, tracking ATP production and consumption.