|
||||||||||||
|
||||||||||||
 |
||||||||||||
| Pillow lava forms when lava pours into the ocean. The lava cools fast and makes a ball. As the lava continues to flow it forces an opening in the crust of the pillow and more flows out to form another pillow shape. Pillow lava is made from basalt lava flows that reaches a source of water. Sometimes scientists find pillow lava strings on the land. That helps them to know that an area of land was under water in the past. | ||||||||||||
