Question

igneous rock forms when rock melts and then crystallizes.
when rock melts below earth’s surface, the rock becomes magma. magma can rise to the surface through cracks in earth’s crust. magma that reaches earth’s surface is called lava. when lava or magma cools, it solidifies by crystallizing to form igneous rock.
igneous rocks commonly form at volcanoes, such as the mauna loa volcano in hawaii.
order the following events to describe how igneous rock can form at mauna loa.
first
ocean water cools the lava, causing it to crystallize and form igneous rock.
lava erupts from mauna loa and flows down the volcano.
lava flowing down the volcano enters the pacific ocean.
melted rock rises toward earth’s surface.
rock beneath mauna loa melts to form magma.

Explanation:

To determine the correct order, we analyze the process of igneous rock formation at Mauna Loa:

1. Rock melts to form magma: The process starts with rock beneath Mauna Loa melting to form magma.
2. Magma rises: Melted rock (magma) rises toward Earth’s surface.
3. Lava erupts: Magma reaches the surface as lava, which erupts from Mauna Loa and flows down the volcano.
4. Lava enters the ocean: Lava flowing down the volcano enters the Pacific Ocean.
5. Lava cools and crystallizes: Ocean water cools the lava, causing it to crystallize and form igneous rock.

Answer:

1. Rock beneath Mauna Loa melts to form magma.
2. Melted rock rises toward Earth’s surface.
3. Lava erupts from Mauna Loa and flows down the volcano.
4. Lava flowing down the volcano enters the Pacific Ocean.
5. Ocean water cools the lava, causing it to crystallize and form igneous rock.