Seafloor Spreading Activity

5. Q22. What do the stripes
in the paper represent?
The stripes represent
the rocks with normal and
reverse polarities.

7. Q23. What does the middle slit
represent? What occurs in this
region?
The middle split represents the
mid-ocean ridge. In this region, the
seafloor spreading occurs.

9. Q24. What is the role of the mid-
ocean ridge in the movement of
lithospheric plates?
The role of the mid-ocean
ridge in the movement of
lithospheric plates is that it is
where the forces that pushes the
lithosphere came from.

11. Q25. How does the new seafloor form
at the mid-ocean ridge?
The hot and less dense material
below the Earth’s crust rises towards
the mid-ocean ridge. This materials
flows sideways carrying the seafloor
away from the ridge, and creates a
crack in the crust. The magma flows
out of the crack, cools down and create
a new seafloor.

13. Q26. What process/es
happen at the side slits?
The side slits is where
subduction occurs.

16. Q27. Is the Earth getting
larger and wider when plates
drift away from each other?
Explain briefly.
`
The Earth is not getting
larger and wider when plates
drift away from each other
because if a new seafloor was
created, the old one was
destructed.