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List of Benchmarks for Science 
 Standard 6.Understands relationships among organisms and their physical environment
  
Topics1. Populations and ecosystems; 2. Ability to support life
   Level III (Grade 6-8)
  Benchmark 2.Knows factors that affect the number and types of organisms an ecosystem can support (e.g., available resources; abiotic factors such as quantity of light and water, range of temperatures, and soil composition; disease; competition from other organisms within the ecosystem; predation)
   Vocabulary terms
A.  carrying capacity
B.  species diversity
C.  ecosystem
D.  abiotic components of ecosystems
E.  disease
F.  competition
G.  predation
  Knowledge/skill statements
  1. Knows the factors that affect the number of organisms an ecosystem can support  A   P  
  2. Knows the factors that affect the types of organisms an ecosystem can support  A   P  
  3. Knows how the available resources affect the number of organisms an ecosystem can support  A   P  
  4. Knows how the available resources affect the types of organisms an ecosystem can support   P  
  5. Knows abiotic factors that affect the number of organisms an ecosystem can support  A   
  6. Knows abiotic factors that affect the types of organisms an ecosystem can support   
  7. Knows the amount of water affects the number of organisms an ecosystem can support   
  8. Knows the amount of water affects the types of organisms an ecosystem can support   
  9. Knows the amount of light affects the number of organisms an ecosystem can support   
  10. Knows the amount of light affects the types of organisms an ecosystem can support  A   
  11. Knows the range of temperatures affects the number of organisms an ecosystem can support   
  12. Knows the range of temperatures affects the types of organisms an ecosystem can support  A   
  13. Knows that soil composition affects the number of organisms an ecosystem can support  A   
  14. Knows that soil composition affects the types of organisms an ecosystem can support   
  15. Knows that disease affects the number of organisms an ecosystem can support  A   
  16. Knows that disease affects the types of organisms an ecosystem can support  A   
  17. Knows that competition from other organisms affects the number of organisms an ecosystem can support  A   
  18. Knows that competition from other organisms affects the types of organisms an ecosystem can support  A   
  19. Knows that predation affects the number of organisms an ecosystem can support  A   P  
  20. Knows that predation affects the types of organisms an ecosystem can support   


 A  = Assessment items available

 P  = Performance expectation(s) available based on source documents

Citation Log: BD(2E,117;​CAE,99;​IB2I,25;​IBBE,108;​IBEE,18,19;​N2I,92;​NEI,36;​NSE,58;​OLE,5g;​PE,50;​SE,158;​TE,57;​*)
Citation reference
BD = benchmark, declarative
BP = benchmark, procedural
BC = benchmark, contextual

1st letter/number of each code in parentheses:
*   McREL Report
2   Project 2061: Benchmarks for Science Literacy
CA   CDE: Science Framework for California Public Schools
CB   College Board Standards for College Success
DoD   Department of Defense curriculum for Prekindergarten science
FR   France: Pre-Elementary School Program
H   Headstart Child Outcomes Framework
IB1   International Baccalaureate: Primary Years Programme curriculum documents
IB2   International Baccalaureate: Middle Years Program Sciences Guide
IBB   International Baccalaureate: Biology
IBC   International Baccalaureate: Chemistry
IBE   International Baccalaureate: Environmental Systems and Societies Guide
IBP   International Baccalaureate: Physics
IL   Illinois Early Learning Standards
K   Standards for Success
L   Louisana Pre-Kindergarten Content Standards
MH   McGraw-Hill: Pre-Kindergarten Standards: Guidelines for Teaching and Learning
N1   New Standards: Elementary School
N12   NAEP: Released items for grade 12
N2   New Standards: Middle School
N3   New Standards: High School
N4   NAEP: Released items for grade 4
N8   NAEP: Released items for grade 8
NE   National Environmental Education Standards
NS   Science Assessment & Item Specifications for 2009 NAEP, Prepub. Ed.
NZ   New Zealand Early Childhood Curriculum
OL   Ocean Literacy: The essential principles of ocean sciences
P   Pearsall: NSTA: The Content Core
R   Russia: Beginnings: The Fundamentals of Preschool Education
S   NRC: National Science Education Standards
T   TIMSS: Assesment framework for Science
T1   TIMSS: Released items for Population 1 (grade 4)
T2   TIMSS: Released items for Population 2 (grade 8)
T3   TIMSS: Released items for the final year of secondary school (grade 12)
TX1   Texas Prekindergarten Guidelines for Science
TX2   Texas College and Career Readiness Standards
UK   United Kingdom: Desirable Outcomes for Children’s Learning

2nd letter code :
E = Explicitly stated in document
I = Implicit in document

Number:
Page number of the cited document