Geysers are made from a tube- an alike hole in the Earth’s surface that runs deep into the crust. The tube is filled with water. Near the bottom of the tube is a molten gem called magma, which heats the water in the tube.
Water in the lower part of the tube, close to the magma, becomes superhot. Gradationally, it begins to boil. Some of the water is forced overhead. The boiling water begins to foam or turn to gas. The steam spurts toward the face. Its important jet of steam ejects the column of water above it. The water rushes through the tube and into the air.