Layers of the Earth

1. PRESENTED BY GROUP 2
LAYERSOFTHE
EARTH
ENVI. SCIENCE
MANTLE

2. 2
ADD A FOOTER
VIDEO SONG

3. WHAT IS MANTLE?
3
ADD A FOOTER
.

4. MANTLE
.
• MANTLE IS THE NEXT LAYER OF
THE EARTH.
THE MANTLE IS THICKER THAN
THE CRUST, IT IS ALMOST 1900
MILES DEEP AND MAKES UP ABOUT
85 PERCENT OF THE EARTHS
WEIGHT, IT IS SOLID ROCK BUT
NOT COMPLETELY HARD .
-- MANTLE MADE UP OF SIGHTLY
DIFFERENT CILLICON ROCKS WITH
MORE IRON THAN THE AMAZIAM.
4

5. MANTLE
.
IT MAKES UP THE
BULK OF THE EARTHS
INTERIOR.
IT REACHES FROM
ABOUT 10 TO 90 KM TO
2890 KM DOWN.
THE DIFFERENCE IN
DESTENY BETWEEN THE
CORE AND THE MANTLE
AT THE CMB IS TWICE AS
GREAT AS THE
DIFFERENCE BETWEEN AIR
AND ROCK
ADD A FOOTER 5

6. MANTLE
.
.
•TEMPERATURESIN
THE MANTLE CLIMB STEADILY
AS YOU MOVE THROUGH THE
MANTLE REACHING 3000
DEGREE CELSIUS
• NEAR THE SURFACE
MANTLE ROCKS MAY MELT
INTO FLOODS OF MAGMA.
THIS MAY GUSH THROUGH
THE UPPER LAYER LIKE OIL
THAT IS BEING SQUEEZE
FROM A SPONGE
• TEMPERATURE
JUMPED BY 1500 AT THE CMB
.
MANTLE ROCK IS SO WARM THAT
IT CHUMS SLOWLY ROUND LIKE
VERY VERY THICK TREACLE
BOILING ON A STOVE. THIS
MOVEMENT IS KNOWN AS MANTLE
CONVECTION CURRENT.
THE BOUNDARY BETWEEN THE
MANTLE AND THE CORE [SEE
EARTHS INTERIOR] IS COLLED THE
CORE MANTLE BOUNDARY [CMB]
THE CMB IS ABOUT 250 KM THICK.IT
IS AN EVEN MORE DRAMATIC
CHANGE THAN BETWEEN THE
GROUND AND THE AIR
. 6

7. .
ADD A FOOTER 7
THIS IS THE
PICTURE OF
MANTLE

8. MANTLE ROCKS
.
EVERY NOW AND
THEN,MANTLE ROCKS
MELT INTO A FLOUD OF
MAGMA WHICH COLLECT
ALONG THE EDGES OF
TECTONIC PLATES.IT THEN
RISES TO THE SURFACE
AND ERUPTS AS A
VOLCANO.
. 8

9. MANTLE ROCKS MOVES
MANTLE ROCKS MOVE ABOUT 10000 TIMES MOVE
SLOWLY THAN THE HOUR HAND AND ON A KITCHEN
CLOCKS COOLER MANTLE ROCKS TAKES ABOUT 200
MILLION YEARS SINK ALL TO THE CORE
ADD A FOOTER 9

10. 10
ADD A FOOTER
VIDEO SONG

11. MEMBERS.
.
JEMAIAH CARPIO
CHELSEA MANGUBA
GIANNA CARLOS
MICHAEL TRIPOLI
CYRUS WHAYNE SALEM
.
ALLYSA GUILLERMO
TRIXIE GUILLERMO
LEIGHDY PIA SIDDAYAO
PRINCE JHAP PAGUD
DEBORAH TELAN