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Topic: Conservation of matter and energy  

Science

 Standard 1.  Understands atmospheric processes and the water cycle
  Level I (Grade K-2)
   Benchmark 2.Knows that water can be a liquid or a solid and can be made to change from one form to the other, but the amount of water stays the same
    Knowledge/skill statements
     1.Knows that water can exist in a liquid form
     2.Knows that water can exist in a solid form
     3.Knows that water can change from a solid to a liquid, but the amount of water stays the same
     4.Knows that water can change from a liquid to a solid, but the amount of water stays same
 Standard 2.  Understands Earth's composition and structure
  Level IV (Grade 9-12)
   Benchmark 4.Knows that throughout the rock cycle (e.g., formation, weathering, sedimentation, reformation), the total amount of material stays the same as its form changes
    Knowledge/skill statements
     1.Knows that throughout the formation process of the rock cycle, the amount of material remains the same
     2.Knows that throughout the weathering process of the rock cycle, the amount of material remains the same
     3.Knows that throughout the sedimentation process of the rock cycle, the amount of material remains the same
     4.Knows that throughout the reformation process of the rock cycle, the amount of material remains the same
 Standard 8.  Understands the structure and properties of matter
  Level II (Grade 3-5)
   Benchmark 2.Knows that the mass of a material remains constant whether it is together, in parts, or in a different state
    Knowledge/skill statements
     1.Knows that the mass of a material remains constant when it’s together
     2.Knows that the mass of a material remains constant when it’s in parts
     3.Knows that the mass of a material remains constant when it’s in a different state
  Level III (Grade 6-8)
   Benchmark 6.Understands the conservation of mass in physical and chemical change (e.g., no matter how substances within a closed system interact with one another, the total weight of the system remains the same; the same number of atoms of a single element weighs the same, no matter how the atoms are arranged)
    Knowledge/skill statements
     1.Understands the conservation of mass in a physical change
     2.Understands the conservation of mass in a chemical change
     3.Understands that no matter how substances interact in a closed system, the total weight remains the same
     4.Understands that the same number of atoms of a single element weighs the same, no matter how the atoms are arranged
 Standard 9.  Understands the sources and properties of energy
  Level III (Grade 6-8)
   Benchmark 2.Understands the law of conservation of energy (i.e., energy cannot be created or destroyed but only changed from one form to another)
    Knowledge/skill statements
     1.Understands that energy can change from one form to another
     2.Understands that energy cannot be created

Engineering Education

 Standard 5.  Understands energy and power types, sources, and conversions
  Level IV (Grade 9-12)
   Benchmark 5.Understands the properties of power and energy (e.g., conservation of energy; the relationships of power, work, and energy; different forms of energy)
    Knowledge/skill statements
     1.Understands the law of conservation of energy
     2.Understands the relationships among power, work, and energy