Tues+Sept+1

in solving technological problems.
 * Topic:** Systems
 * PA Standards:** 3.1.10 A (Systems)
 * Text Pages:** 12
 * Goals / Objectives:**
 * Discriminate among the concepts of systems, subsystems, feedback and control

__Copy the following definitions into your notebook:__
 * Bell Ringer:**
 * open system**- a system that can exchange both matter and energy with its surroundings
 * closed system**- a system that cannot exchange matter or energy with its surroundings
 * system**- A group of related objects that work together to achieve a desired result
 * open loop system**- a group of related objects that do not have feedback and cannot modify themselves
 * closed loop system**- a group of related objects that have feedback and can modify themselves
 * subsystem**- a group of related objects that make up a larger system

Complete journal entry entitled, "systems". You may include diagrams / images. Be sure to label, or list the individual components that make up your chosen system. Also explain why this is a system.
 * Individual Computer Work:**