Standard 4/Middle School/Benchmark 4
Benchmark Question: How does light interact with matter?
Focus Question: What happens to light when it is
reflected, refracted, or transmitted?
The teacher will explain the
terms: transparent, translucent and opaque. Students will brainstorm
examples of materials that have these characteristics. Students will shine
flashlights in a darkened room on a variety of transparent, translucent,
and opaque objects (mirrors, plastic, clear water, water with a drop of
milk, wood block, prism, etc.). With a partner, each student will classify
objects into three categories based upon the way light does or does not
pass through them.
As a class, students will
discuss situations in the real world in which light is reflected (mirror/
calm water), refracted (light passing through water in a pool causing the
perceived position of an object to be different from its actual position),
and transmitted (stained glass window).
Students will use their
knowledge of light and write a paragraph that explains a desert mirage.