Difference between revisions of "HS-LS1-5"

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| Level5 = Create a model, given input and output of matter and energy, to demonstrate how photosynthesis transforms light energy into stored chemical energy.
 
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| Level4 =  Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.
 
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| Level3 = Use a model to describe how the process of photosynthesis conserves energy and/or matter.
 
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| Level2 = Use a model/information demonstrating photosynthesis to identify energy and matter components.
 
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| Level1 = Use a model/information to identify how the process of photosynthesis transforms light energy into stored chemical energy.
 
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== Vocabulary ==
 
== Vocabulary ==
 
Terms that come from this standard or from the released exam questions that assess it, listed by subject. Chemistry terms are from the [[Chemistry Glossary]]; Biology terms are from the [[Biology Glossary]].
 
Terms that come from this standard or from the released exam questions that assess it, listed by subject. Chemistry terms are from the [[Chemistry Glossary]]; Biology terms are from the [[Biology Glossary]].
  
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<span class="disc-label disc-label-bio">Biology</span>
 
<div class="vocab-subhead">From this standard</div>
 
<div class="vocab-subhead">From this standard</div>
 
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* [[Questions:Purple Insect Eater#q1|wetland]] – Jan 2026
 
* [[Questions:Purple Insect Eater#q1|wetland]] – Jan 2026
 
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{{PerformanceLevel}}
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{{PLTable
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| Level5 = Create a model, given input and output of matter and energy, to demonstrate how photosynthesis transforms light energy into stored chemical energy.
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| Level4 =  Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.
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| Example4 = <span class="pld-chip pld-chip-chem">[[Questions:The Fruit Industry in New York State#q2|Aug 2026 Chem · Q7]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Space Invader#q2|Jan 2026 Bio · Q7]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Coral Reefs Sample Cluster#q2|June 2025 Bio · Q2]]</span>
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| Level3 = Use a model to describe how the process of photosynthesis conserves energy and/or matter.
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| Example3 = <span class="pld-chip pld-chip-chem">[[Questions:Photosynthetic Pathways#q1|June 2026 Chem · Q38]]</span>
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| Level2 = Use a model/information demonstrating photosynthesis to identify energy and matter components.
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| Example2 = <span class="pld-chip pld-chip-chem">[[Questions:PSC Evaluating Gas Stoves#q5|Chem Sample · Gas Stoves Q5]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Homeostasis in Plants#q2|Aug 2026 Bio · Q31]]</span>
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| Level1 = Use a model/information to identify how the process of photosynthesis transforms light energy into stored chemical energy.
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| Example1 = <span class="pld-chip pld-chip-bio">[[Questions:Purple Insect Eater#q1|Jan 2026 Bio · Q37]]</span> <span class="pld-chip pld-chip-bio">[[Questions:Carbon! Where Does It Come From? Where Does It Go?#q3|June 2025 Bio · Q3]]</span>
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Latest revision as of 18:33, 23 October 2026

← HS-LS1-8 Bio
HS-LS1-6 Bio →
← HS-PS4-4 Chem

Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy.

Clarification statement: Emphasis is on illustrating inputs and outputs of matter and the transfer and transformation of energy in photosynthesis by plants and other photosynthesizing organisms. Examples of models could include diagrams, chemical equations, and conceptual models.

Assessment boundary: Assessment does not include specific biochemical steps.

Note: This is a performance expectation for both HS Biology and HS Chemistry. For chemistry, the focus is on "balancing chemical equations" (as per the NYSED high school course maps).

Regents Exam Questions

Released New York State Regents exam questions that assess HS-LS1-5 are listed here by exam and question cluster. Each link opens the question with its answer key.

Chemistry

Exam Cluster Question
August 2026 Chemistry Regents The Fruit Industry in New York State Question 7
June 2026 Chemistry Regents Photosynthetic Pathways Question 38
Chemistry sample clusters (Spring 2025) Evaluating Gas Stoves Question 5

Biology

Exam Cluster Question
August 2026 Biology Regents Homeostasis in Plants Question 31
January 2026 Biology Regents Space Invader Question 7
Purple Insect Eater Question 37
June 2025 Biology Regents Carbon! Where Does It Come From? Where Does It Go? Question 3
Biology sample clusters (Spring 2024) Coral Reefs Question 2

Vocabulary

Terms that come from this standard or from the released exam questions that assess it, listed by subject. Chemistry terms are from the Chemistry Glossary; Biology terms are from the Biology Glossary.

Chemistry

From this standard
  • balancing
  • chemical energy
  • chemical equation
  • component (of a system)
  • conceptual model
  • energy
  • energy flow
  • evidence
  • inputs and outputs (of matter and energy)
  • light energy
  • matter
  • matter flow
  • photosynthesis
  • system
  • transformation
From released exam questions

Biology

From this standard
  • carbon
  • chemical energy
  • energy flow
  • inputs and outputs
  • light energy
  • matter
  • oxygen
  • photosynthesis
  • photosynthesizing organisms
  • sugar
From released exam questions

Performance Level Descriptions

Every Regents exam question on HS-LS1-5 is written to match one of the performance level descriptions (PLDs) below.

Level 1: Use a model/information to identify how the process of photosynthesis transforms light energy into stored chemical energy. Jan 2026 Bio · Q37 June 2025 Bio · Q3
Level 2: Use a model/information demonstrating photosynthesis to identify energy and matter components. Chem Sample · Gas Stoves Q5 Aug 2026 Bio · Q31
Level 3: Use a model to describe how the process of photosynthesis conserves energy and/or matter. June 2026 Chem · Q38
Level 4: Use a model to illustrate how photosynthesis transforms light energy into stored chemical energy. Aug 2026 Chem · Q7 Jan 2026 Bio · Q7 June 2025 Bio · Q2
Level 5: Create a model, given input and output of matter and energy, to demonstrate how photosynthesis transforms light energy into stored chemical energy.
Notice: PLD levels!

Resources

Examples and discussion of resources for the learning, teaching, and assessment of HS-LS1-5.

Pixel beaver This section could be expanded upon. You can help out by adding to this section.


NGSS Dimensions

Performance expectation HS-LS1-5 was developed using the following elements from the NRC document A Framework for K-12 Science Education:

Science and Engineering Practices
  • Developing and Using Models
    • Use a model based on evidence to illustrate the relationships between systems or between components of a system.
Disciplinary Core Ideas
  • LS1.C: Organization for Matter and Energy Flow in Organisms
    • The process of photosynthesis converts light energy to stored chemical energy by converting carbon dioxide plus water into sugars plus released oxygen.
Crosscutting Concepts
  • Energy and Matter
    • Changes of energy and matter in a system can be described in terms of energy and matter flows into, out of, and within that system.
Page contributors: Conrad Richman, Caroline Leonard, Shirley Shameen
Biology and Chemistry | HS. Matter and Energy in Organisms and Ecosystems
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