[SC2015] (1) 2 :
2 ) Construct explanations from observations that objects can be seen only when light is available to illuminate them (e.g., moon being illuminated by the sun, colors and patterns in a kaleidoscope being illuminated when held toward a light).
[SC2015] (1) 3 :
3 ) Investigate materials to determine which types allow light to pass through (e.g., transparent materials such as clear plastic wrap), allow only partial light to pass through (e.g., translucent materials such as wax paper), block light (e.g., opaque materials such as construction paper), or reflect light (e.g., shiny materials such as aluminum foil).
[SC2015] (4) 2 :
2 ) Plan and carry out investigations that explain transference of energy from
place to place by sound, light, heat, and electric currents.
a. Provide evidence that heat can be produced in many ways (e.g., rubbing
hands together, burning leaves) and can move from one object to another by conduction.
b. Demonstrate that different objects can absorb, reflect, and/or conduct
c. Demonstrate that electric circuits require a complete loop through which
an electric current can pass.
[SC2015] (4) 8 :
8 ) Construct a model to explain that an object can be seen when light
reflected from its surface enters the eyes.
[SC2015] PS8 (8) 18 :
18 ) Use models to demonstrate how light and sound waves differ in how they are
absorbed, reflected, and transmitted through different types of media.