• Physical Sciences
    • Matter and Its Interactions

      • Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.

      • Construct and revise an explanation for the outcome of a simple chemical reaction based on the outermost electron states of atoms, trends in the periodic table, and knowledge of the patterns of chemical properties.

      • Plan and conduct an investigation to gather evidence to compare the structure of substances at the bulk scale to infer the strength of electrical forces between particles.

      • Develop a model to illustrate that the release or absorption of energy from a chemical reaction system depends upon the changes in total bond energy.

      • Apply scientific principles and evidence to provide an explanation about the effects of changing the temperature or concentration of the reacting particles on the rate at which a reaction occurs.

      • Refine the design of a chemical system by specifying a change in conditions that would produce increased amounts of products at equilibrium.

      • Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.

      • Develop models to illustrate the changes in the composition of the nucleus of the atom and the energy released during the processes of fission, fusion, and radioactive decay.

    • Motion and Stability: Forces and Interactions

      • Analyze data to support the claim that Newton’s second law of motion describes the mathematical relationship among the net force on a macroscopic object, its mass, and its acceleration.

      • Use mathematical representations to support the claim that the total momentum of a system of objects is conserved when there is no net force on the system.

      • Apply scientific and engineering ideas to design, evaluate, and refine a device that minimizes the force on a macroscopic object during a collision.

      • Use mathematical representations of Newton’s Law of Gravitation and Coulomb’s Law to describe and predict the gravitational and electrostatic forces between objects.

      • Plan and conduct an investigation to provide evidence that an electric current can produce a magnetic field and that a changing magnetic field can produce an electric current.

      • Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.

    • Energy

      • Create a computational model to calculate the change in the energy of one component in a system when the change in energy of the other component(s) and energy flows in and out of the system are known.

      • Develop and use models to illustrate that energy at the macroscopic scale can be accounted for as a combination of energy associated with the motions of particles (objects) and energy associated with the relative positions of particles (objects).

      • Design, build, and refine a device that works within given constraints to convert one form of energy into another form of energy.

      • Plan and conduct an investigation to provide evidence that the transfer of thermal energy when two components of different temperature are combined within a closed system results in a more uniform energy distribution among the components in the system (second law of thermodynamics).

      • Develop and use a model of two objects interacting through electric or magnetic fields to illustrate the forces between objects and the changes in energy of the objects due to the interaction.

    • Waves and their Applications in Technologies for Information Transfer

      • Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.

      • Evaluate questions about the advantages of using a digital transmission and storage of information.

      • Evaluate the claims, evidence, and reasoning behind the idea that electromagnetic radiation can be described either by a wave model or a particle model, and that for some situations one model is more useful than the other.

      • Evaluate the validity and reliability of claims in published materials of the effects that different frequencies of electromagnetic radiation have when absorbed by matter.

      • Communicate technical information about how some technological devices use the principles of wave behavior and wave interactions with matter to transmit and capture information and energy.

  • Life Sciences
    • From Molecules to Organisms: Structures and Processes

      • Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins which carry out the essential functions of life through systems of specialized cells.

      • Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

      • Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.

      • Use a model to illustrate the role of cellular division (mitosis) and differentiation in producing and maintaining complex organisms.

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

      • Construct and revise an explanation based on evidence for how carbon, hydrogen, and oxygen from sugar molecules may combine with other elements to form amino acids and/or other large carbon-based molecules.

      • Use a model to illustrate that cellular respiration is a chemical process whereby the bonds of food molecules and oxygen molecules are broken and the bonds in new compounds are formed resulting in a net transfer of energy.

    • Ecosystems: Interactions, Energy, and Dynamics

      • Use mathematical and/or computational representations to support explanations of factors that affect carrying capacity of ecosystems at different scales.

      • Use mathematical representations to support and revise explanations based on evidence about factors affecting biodiversity and populations in ecosystems of different scales.

      • Construct and revise an explanation based on evidence for the cycling of matter and flow of energy in aerobic and anaerobic conditions.

      • Use mathematical representations to support claims for the cycling of matter and flow of energy among organisms in an ecosystem.

      • Develop a model to illustrate the role of photosynthesis and cellular respiration in the cycling of carbon among the biosphere, atmosphere, hydrosphere, and geosphere.

      • Evaluate the claims, evidence, and reasoning that the complex interactions in ecosystems maintain relatively consistent numbers and types of organisms in stable conditions, but changing conditions may result in a new ecosystem.

      • Design, evaluate, and refine a solution for reducing the impacts of human activities on the environment and biodiversity.

      • Evaluate the evidence for the role of group behavior on individual and species’ chances to survive and reproduce.

    • Heredity: Inheritance and Variation of Traits

      • Ask questions to clarify relationships about the role of DNA and chromosomes in coding the instructions for characteristic traits passed from parents to offspring.

      • Make and defend a claim based on evidence that inheritable genetic variations may result from: (1) new genetic combinations through meiosis, (2) viable errors occurring during replication, and/or (3) mutations caused by environmental factors.

      • Apply concepts of statistics and probability to explain the variation and distribution of expressed traits in a population.

    • Biological Evolution: Unity and Diversity

      • Communicate scientific information that common ancestry and biological evolution are supported by multiple lines of empirical evidence.

      • Construct an explanation based on evidence that the process of evolution primarily results from four factors: (1) the potential for a species to increase in number, (2) the heritable genetic variation of individuals in a species due to mutation and sexual reproduction, (3) competition for limited resources, and (4) the proliferation of those organisms that are better able to survive and reproduce in the environment.

      • Apply concepts of statistics and probability to support explanations that organisms with an advantageous heritable trait tend to increase in proportion to organisms lacking this trait.

      • Construct an explanation based on evidence for how natural selection leads to adaptation of populations.

      • Evaluate the evidence supporting claims that changes in environmental conditions may result in: (1) increases in the number of individuals of some species, (2) the emergence of new species over time, and (3) the extinction of other species.

      • Create or revise a simulation to test a solution to mitigate adverse impacts of human activity on biodiversity.

  • Earth and Space Sciences
    • Earth's Place in the Universe

      • Develop a model based on evidence to illustrate the life span of the sun and the role of nuclear fusion in the sun’s core to release energy in the form of radiation.

      • Construct an explanation of the Big Bang theory based on astronomical evidence of light spectra, motion of distant galaxies, and composition of matter in the universe.

      • Communicate scientific ideas about the way stars, over their life cycle, produce elements.

      • Use mathematical or computational representations to predict the motion of orbiting objects in the solar system.

      • Evaluate evidence of the past and current movements of continental and oceanic crust and the theory of plate tectonics to explain the ages of crustal rocks.

      • Apply scientific reasoning and evidence from ancient Earth materials, meteorites, and other planetary surfaces to construct an account of Earth’s formation and early history.

    • Earth's Systems

    • Earth and Human Activity

      • Construct an explanation based on evidence for how the availability of natural resources, occurrence of natural hazards, and changes in climate have influenced human activity.

      • Evaluate competing design solutions for developing, managing, and utilizing energy and mineral resources based on cost-benefit ratios.

      • Create a computational simulation to illustrate the relationships among management of natural resources, the sustainability of human populations, and biodiversity.

      • Evaluate or refine a technological solution that reduces impacts of human activities on natural systems.

      • Analyze geoscience data and the results from global climate models to make an evidence-based forecast of the current rate of global or regional climate change and associated future impacts to Earth systems.

      • Use a computational representation to illustrate the relationships among Earth systems and how those relationships are being modified due to human activity.

  • Engineering, Technology, and Applications of Science
    • Engineering Design

      • Analyze a major global challenge to specify qualitative and quantitative criteria and constraints for solutions that account for societal needs and wants.

      • Design a solution to a complex real-world problem by breaking it down into smaller, more manageable problems that can be solved through engineering.

      • Evaluate a solution to a complex real-world problem based on prioritized criteria and trade-offs that account for a range of constraints, including cost, safety, reliability, and aesthetics as well as possible social, cultural, and environmental impacts.

      • Use a computer simulation to model the impact of proposed solutions to a complex real-world problem with numerous criteria and constraints on interactions within and between systems relevant to the problem.