1. Systems in Action

2. Types of Systems
System – composed of parts that work together to perform a function
Systems may be physical or social

3. Physical Systems
a group of physical parts that need to work together to perform a function. (telephone, electronic games, organs, dump truck)
Physical systems may be natural or human-made.

4. Physical Systems
Natural physical systems include the solar system and an animal's digestive system.
Human-made physical systems include mechanical systems, optical systems, electrical systems, hydraulic systems…(The names of these systems come from the type of energy they use) ex. jackhammer, camera, electrical circuit

5. Social Systems
Social systems are groups of people, or other organisms, joining together to perform tasks and establish relationships. Ex. health care, education, transportation, police force, ant colonies
Social systems may be natural or human-made.

6. Social Systems
Examples of natural social systems would be bee colonies, wolf or coyote packs, etc.
Human-made social systems include health care, education, waste management systems, a symphony orchestra, postal service
Social systems establish ways that people or other organisms interact and relate to one another.

7. All systems have a Purpose which is its reason for existing

8. All systems have a Purpose which is its reason for existing
What is the purpose of the following systems?
Health car?
Bicycle?
Lamp?
Can operner?

9. Inputs are all of the things that go into a system to make it work
Inputs are all of the things that go into a system to make it work. Inputs may include forces, energy, and resources (raw materials)
Outputs are all of the tasks or services that the system performs
Components are all the individual parts of a system
Processes are the actions, taken by the system, that allow it to convert the input to the output.

10. Analyzing Systems
Garden Take a few minutes to analyze a garden as a system. Purpose: Input: Output: Components: Processes:

11. Let’s look back at our garden…
Purpose: To Grow things Input: energy from the sun, seeds, water, fertilizer, soil Output: Flowers, food, fun, nutrients to soil, habitat for organisms Components: soil, sunlight, carbon dioxide, plants, insects Processes: planting, watering, photosynthesis, pollination

12. Let’s Look More Closely at two systems
Complete the septic tank/rube Goldberg system assignment ... Come see me to get the assignment 

13. Systems to investigate:
telephones, electronic games, organ systems health care, transportation, education, police force, postal service, water cycle, carbon cycle, motor boat, dump truck, factory, bakery,