About this worksheet
Twelve everyday materials, from a clear glass window to a brick wall, need sorting by what they do when a flashlight shines on them. The science museum has mixed up its items, and 1st grade students write each one into four columns: transparent, translucent, opaque, and reflective. Two short questions then ask which item was trickiest and for one new classroom example of each type. The answer key places all 12 materials, three to a column, and explains why the shiny spoon catches students out.
