How about a history project on the Mayflower?
It is the ship that carried the Pilgrims to the New World.
You would get to build a model ship, and you would need to put together display telling how the Mayflower helped the Pilgrims across the ocean.
We affect our planet's health in many ways.
One way is by transportation, some ways of transportation may not hurt the planet, while other are very harmful.
Another way is by pollution. When you throw trash on the ground, of smoke, you are pollution, harming the earth.
~CoCo