NGSS PE (link)
Make observations to provide evidence that energy can be transferred from place to place by sound, light, heat, and electric currents.
Develop a model to describe that light reflecting from objects and entering the eye allows objects to be seen.
Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects.
Develop and use a model to describe that waves are reflected, absorbed, or transmitted through various materials.
Integrate qualitative scientific and technical information to support the claim that digitized signals are a more reliable way to encode and transmit information than analog signals.
Use mathematical representations of Newton’s Law of Gravitation and Coulomb’s Law to describe and predict the gravitational and electrostatic forces between objects.
Use mathematical representations to support a claim regarding relationships among the frequency, wavelength, and speed of waves traveling in various media.