Correlation to Next Generation Science Standards (NGSS) Shop by NGSS »

Performance Expectations:

MS-LS1-7. Develop a model to describe how food is rearranged through chemical reactions forming new molecules that support growth and/or release energy as this matter moves through an organism.
MS-LS2-1. Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.

• Science & Engineering Practices

  Developing and Using Models - Develop a model to describe unobservable mechanisms.

  Analyzing and Interpreting Data - Analyze and interpret data to provide evidence for a phenomenon.

• Disciplinary Core Ideas

  LS1.C: Organization for Matter and Energy Flow in Organisms
  Within individual organisms, food moves through a series of chemical reactions in which it is broken down and rearranged to form new molecules, to support growth, or to release energy.

  LS2.A: Interdependent Relationships in Ecosystems
  - Organisms, and populations of organisms, are dependent on their environmental interactions both with other living things and with nonliving factors.
  - In any ecosystem, organisms and populations with similar requirements for food, water, oxygen, or other resources may compete with each other for limited resources, access to which consequently constrains their growth and reproduction.
  - Growth of organisms and population increases are limited by access to resources.

  PS3.D: Energy in Chemical Processes and Everyday Life
  Cellular respiration in plants and animals involve chemical reactions with oxygen that release stored energy. In these processes, complex molecules containing carbon react with oxygen to produce carbon dioxide and other materials.

• Crosscutting Concepts

  Energy and Matter - Matter is conserved because atoms are conserved in physical and chemical processes.

  Cause and Effect - Cause and effect relationships may be used to predict phenomena in natural or designed systems.