To move a tile into the empty space, click on the tile to be moved. If you think you need a hint to see how the map should look, click here.
Ice caves originate from flowing water through glacers, carving out tunnels. The beautiful blue color is created by light which penetrates the ice. Water in the form of ice in glacers and icecaps are second in the amount of water contained on the earth but only amount to little more than 2% of the total water on the planet.
To discover about the atmosphere, go to JetStream - an Online School for Weather.