-3 sets of differentiated definition posters of transparent, translucent, and opaque (one set of singles with name and picture; one set of singles with name, picture, and definition; and one set with all three names, definitions, and pictures).
-Memory Card game (or can be used in pocket chart).
-Fill in the blank worksheet
-Cut and paste worksheet with answer sheet
Check out my other science units here:
Plant Structures and Functions
Planets Unit (Grades 1-4)