7. Lauren is comparing rocks from two different locations. She has the following information about the rocks:

Question

Rock A formed from small pieces of rock.
Rock B formed from liquid rock in a different place.
Rocks A and B formed at about the same time.

Are Rocks A and B the same or different types of rock?

The rocks are

Responses

a
different types because they formed in different places.
different types because they formed in different places.

b
different types because they formed in different ways.
different types because they formed in different ways.

c
the same type because they both formed from rock material.
the same type because they both formed from rock material.

d
the same type because they formed at the same time.

Answer 1

The correct response would be:

b different types because they formed in different ways.

Rock A formed from small pieces of rock (sedimentary rock), while Rock B formed from liquid rock (magma or lava cooling to form igneous rock). Since they formed through different processes, they are classified as different types of rock.