How do Volcanoes and the ocean mix to make islands?

Answer 1

The lava flows out from the volcano and slowly cools down as it reaches the ocean water. After it is completely cooled, it will turn to hard ground and become an island.

Answer 2

It's easy to see why lava spewing from the bottom of the ocean can form an island, but do you know how island chains such as the Hawaiian islands are formed?
At the bottom of the ocean, there are what are known as geologic "hotspots," volcanically active areas that spit out molten rock from deep within the surface of the earth where temperatures are hot enough to melt rocks. If the hotspot releases enough molten rock, it forms into islands, but underwater mountains are also formed if it doesn't quite spit out enough material to form islands.
Even though the hotspot remains fixed in one place, the tectonic plates which make up the earth's surface move above the hotspot. And so as the tectonic plate moves across the hotspot, a chain of islands and underwater mountains can be formed by the molten material that comes out of the hotspot.
Just look at any globe and you can see many such island chains such as the Hawaiian islands.

Answer 3

As volcanoes develop, they become mountains.

In the ocean, a volcanic mountain becomes an island if it reaches above the surface of the water. However, many volcanoes form underground peaks that never reach the surface.

Answer 4

as the lava flows out of the volcano it is cooled by the surrounding ocean waters. As a result, the volcano builds up from the seafloor toward the surface.

Answer 5

Volcano's do make islands You have heard of Hawaii haven't you. Lava rises up from the floor of the sea building up until the cinder cone breaks the waves. Ocean action current and waves break the cone down and more volcanic action keeps building up wider each eruption. Plant life takes hold then sand and wave action tears down the shore. Volcanic eruptions and wave action eventually the island rises up above the waves and people and animals sail in on floating debris and birds get blown in on hurricanes. Aloha!

Answer 6

when Volcanos erupt, the lava runs into oceans. When the coolness of the water makes contact with the hot lava, it cools the lava down, making a hard rocky substance. Which later turns into land. That's how all of Hawaii was formed :-)

Answer 7

Some years ago, a fishing crew from Iceland actually saw a volcano rise from the ocean. The volcano is now Surtsey. See

http://www.platetectonics.com/book/page_10.asp

Also some years ago, on land this time, a Mexican farmer witnessed a volcano that came up out of his fields. See

http://www.cnn.com/TRAVEL/DESTINATIONS/9711/natural.wonders/paricutin.html

The volcano is called Paricutin.

Answer 8

When volcanoes shoot lava (or magma, or whatever) it is acutally superheated rock, when that rock touches the cold water it hardens to become just rock, then the volcanoe keeps on building itself up unil it peirces the surface of the ocean

Answer 9

When it erupes the ocean cools the lava,then over time the waves beat on it & gradually break it down to soil.

Answer 10

when lava flows into the water it cools and it soon dries completely to make land

i think lava is pretty much heated soil or whatever the land is made of butyou should watch the discovery channel