Earth

SystemsScience

A System is a group of interacting parts that function as a whole.

Systems change over time.

Changes in systems can be short, slow, or cyclic.

Interactions within a system may not always be obvious.

Interactions within a system may not always be obvious.

Systems have boundaries.

Systems have boundaries.

Systems are parts of larger systems, which are parts of still larger systems.

Systems are made up of subsystems, which in turn are made up of still smaller subsystems.

Systems have inputs and outputs.

• You are what you eat!• Your input counts!

Systems have inputs and outputs.

Special Note:

• Scientists do not yet know enough about Earth’s systems to which elements are essential, which are not…..

• Define: Quality of life:

Smart people remember remember this:

• Any system is only as good as it’s weakest part!

• Other examples that could apply you?