[Solved] Between ages 7 and 11, children can think in sophisticated ways as long as what they are thinking about is tangibly represented. Piaget calls this stage A) concrete operations. B) formal operations. C) preoperational thought. D) sensorimotor limitations. Slide Clips: Small devices or holders used to secure slides in place during presentations or in a microscope. Specimen Slide: A thin glass plate on which specimens are placed for examination under a microscope. Microscope: An instrument used to see objects that are too small for the naked eye, expanding our understanding of microscopic worlds. Condenser: A device or unit used to condense a substance from its gaseous to liquid state, commonly found in HVAC systems, refrigeration, and laboratory apparatus.