The survivors of the shipwreck have to figure out a way to survive the terrible storm, pounding waves, blinding lightning, and crashing waves by building a device to reach the tropical island they can see in the distance.  They have to work fast, before the ship sinks below the ocean forever, taking all the supplies with it!

The survivors of the shipwreck have to figure out a way to provide shelter for the group.  Survival of the group depends on all the basic human needs being met.

Now the survivors of the shipwreck have reached the tropical island and are, at the moment, safe.  How can the group get a steady supple of fresh drinking water?
The group builds a machine to lower a bucket, capture the water, and pull it up for use.

The survivors of the shipwreck have to figure out a way to get food for the group immediately, and as a steady supply.  Looking around the island the survivors see fruits, berries, roots, tubers, and various animals that might be eaten if caught.  Now, just how can we go about this in a logical way?

The survivors of the shipwreck have to figure out a way to get off the island.  They have noticed that airplanes, ships, helicopters, and boats sometimes pass the island in the distance.  If they can build some mechanical device that will signal continuously their rescuers may appear!  Now just what should we build?

The survivors of the shipwreck have to figure out a way to explore the island.  The problem is that some of the island is swampy, some is submerged in water, some has steep hills, and other areas are flat with large rocks and forests.  Just what kind of vehicle should we build that will be able to navigate all of the island?

The survivors of the shipwreck have to figure out a way to get off the island and back to civilization!  They have worked really hard to stay alive, attract attention, and get back to their homes.  What kind of vehicle would get them all off the island safely?