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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.

Performance Expectation

Grade: 
Middle School (6-8)
Undertake a design project to construct, test, and modify a device that either releases or absorbs thermal energy by chemical processes.*

Performance Expectation

Grade: 
Middle School (6-8)
Apply Newton’s Third Law to design a solution to a problem involving the motion of two colliding objects.*

Performance Expectation

Grade: 
Middle School (6-8)
Plan an investigation to provide evidence that the change in an object’s motion depends on the sum of the forces on the object and the mass of the object.

Performance Expectation

Grade: 
Middle School (6-8)
Ask questions about data to determine the factors that affect the strength of electric and magnetic forces.

Performance Expectation

Grade: 
Middle School (6-8)
Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects.

Performance Expectation

Grade: 
Middle School (6-8)
Conduct an investigation and evaluate the experimental design to provide evidence that fields exist between objects exerting forces on each other even though the objects are not in contact.

Performance Expectation

Grade: 
Middle School (6-8)
Construct and interpret graphical displays of data to describe the relationships of kinetic energy to the mass of an object and to the speed of an object.

Performance Expectation

Grade: 
Middle School (6-8)
Develop a model to describe that when the arrangement of objects interacting at a distance changes, different amounts of potential energy are stored in the system.

Performance Expectation

Grade: 
Middle School (6-8)
Apply scientific principles to design, construct, and test a device that either minimizes or maximizes thermal energy transfer.*

Performance Expectation

Grade: 
Middle School (6-8)