Oklahoma 7th Grade Science Standards

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PS Physical Sciences

• PS1 Matter and Its Interactions
  • 7.PS1.1 Develop models to describe the atomic composition of simple molecules and extended structures.
  • 7.PS1.2 Analyze and interpret patterns of data related to the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.
  • 7.PS1.3 Gather and make sense of information to describe that synthetic materials come from natural resources and impact society.
  • 7.PS1.5 Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
  • 7.PS1.6 Construct, test, and modify a device that releases or absorbs thermal energy by chemical processes to solve a problem.
• PS3 Energy
  • 7.PS3.1 Construct and interpret graphical displays of data to describe the proportional relationships of kinetic energy to the mass of an object and to the speed of an object.
  • 7.PS3.2 Develop a model to describe that when objects interacting at a distance change their arrangement, different amounts of potential energy are stored in the system.
  • 7.PS3.5 Construct, use, and present arguments to support the claim that when the kinetic energy of an object changes, energy is transferred to or from the object.

LS Life Sciences

• LS1 From Molecules to Organisms: Structure and Function
  • 7.LS1.6 Construct a scientific explanation based on evidence for the role of photosynthesis in the cycling of matter and flow of energy into and out of organisms.
  • 7.LS1.7 Develop a model to describe how food molecules in plants and animals are broken down and rearranged through chemical reactions to form new molecules that support growth and/or release energy as matter moves through an organism.
• LS2 Ecosystems: Interactions, Energy, and Dynamics
  • 7.LS2.1 Analyze and interpret data to provide evidence for the effects of resource availability on organisms and populations of organisms in an ecosystem.
  • 7.LS2.2 Construct an explanation that predicts patterns of interactions among organisms across multiple ecosystems.
  • 7.LS2.3 Develop a model to describe the cycling of matter and flow of energy among living and nonliving parts of an ecosystem.
  • 7.LS2.4 Construct an argument supported by empirical evidence that changes to physical or biological components of an ecosystem affect populations.
  • 7.LS2.5 Evaluate competing design solutions for maintaining biodiversity and ecosystem services.

ESS Earth and Space Sciences

• ESS3 Earth and Human Activity
  • 7.ESS3.1 Construct a scientific explanation based on evidence for how the uneven distributions of Earth’s mineral, energy, and groundwater resources are the result of past and current geoscience processes.
  • 7.ESS3.3 Apply scientific principles to design a method for monitoring and minimizing human impact on the environment.
  • 7.ESS3.4 Construct an argument supported by evidence for how increases in human population and per-capita consumption of natural resources impact Earth’s systems.
  • 7.ESS3.5 Obtain, evaluate, and communicate evidence of the factors that have caused changes in global temperatures over the past century.