Often students do not consider the earth and its problems as a system. This activity can be used to introduce a variety of subjects. This is a method of introducing the earth as a system, and the fragility of that system when population, pollution, 1st world verse 3rd world, terrorism, etc., are considered as interactive parts of a spaceship earth.
Students estimate time earth can exist with current problems.
Students list 5 world problems 3. Students list 5 local problems 4. The spaceship is divided in half. There is a computer on board but no one is using it. Chemicals, oxygen and life support are controlled by anyone who wants to play at the computer.