Science Grade 10

1. TECTONIC PLATES
Steve Roland Cabra
Grade 10

3. Our Earth is a blue planet which cover
rock called lithosphere, the water called
hydrosphere and the sky called
atmosphere. The surrounded plant and
animal life called biosphere. However,
the Earth is go back in time.

5. Above billions and billions of years ago.
The molten volcanoes will erupted and
lava flow all over the Earth. When the lava
flow turns cool, into form rock and dark
clouds was coming to rain falls over the
Earth to become ocean.

7. Then over millions and millions of years, the
Earth’s ocean to form new islands called crust.
Later, the Earth’s islands expanded into new
supercontinents called Pangea. Over the next
millions of years, the Pangea split to form called
plates. The Earth’s crust break up and move into
new continents until a present. This is a called
continental drift. The pieces of both Earth’s crust
and mantle called tectonic plates.

9. During the Earth’s plates moves, the one plates
subducted into ocean to violent eruption of volcanoes
known as subduction zones and two plates collided
into form new mountains. This is called convergent
plate boundary. The two plates break apart called
divergent plate boundary. The two plates slide passes
each other called transform plate boundary. These are
3 types of boundaries called plate tectonic
boundaries.

11. Earthquakes, volcanic eruptions and
tsunamis are major caused a changing
Earth’s tectonic plates which causes many
lost of life and damaged properties.

13. To do this, volcanologists and seismologists investigated
find the Earth’s tectonic plates and predicted intensive a
earthquakes and even volcanic eruptions and how
examined could happened a devastated earthquake due
to changing tectonic plates.

15. Disaster preparedness are used to major natural
disasters such as earthquakes and volcanic eruptions
to help keeps safety and protected your lives and
avoid big risk must be happened.