magma

1. JOHN FLORENTINO E. ECHON

2. Factors that affect the viscosity of
Magma
1. Temperature
2. Chemical composition/ silica
content
3. Amount of dissolved gasses

3. 1. Temperature
The viscosity of magma decreases with
temperature. The higher the
temperature of magma is, the lower is its
viscosity. As lava flows, it cools and
begins to harden, its ability to flow
decreases and eventually it stops.

4. 2. Silica Content
Magmas with high silica content are
more viscous than those with low
silica content. The magma that
contains less silica is relatively fluid
and travels far before solidifying.

5. 3. Amount of Gases
 Other factors being equal, gas (mainly water
vapor) dissolved in magma tends to increase
its ability to flow. Therefore, in near-surface
environments, the loss of gases makes
magma more viscous, forming a dome or a
columnar

6. Viscosity of Magma in
Different Conditions

7. Lava with less silica content has low
viscosity that it can travel a great
distance, forming a thin sheet.
1

8. Lava with high silica
content is too
viscous to travel far, and
tends to break up as it
flows.
2

9. Lava with low amount of gas and high silica
content is very viscous and does not flow
out at all as it rises forming, a columnar plug
in the vent.
3

10. Lava with low amount of gas as
it rises has high viscosity that it
piles up at a vent resulting in a
dome.
4

11. 1-2 Classification of volcanoes according to
its eruption
3-5 Classification of volcanoes according to
its shape
6-8 Factors that affect the viscosity of magma
9. Mayon volcano is an example of
_______________ cone volcano.
10. It refers to molten rock

12. 11. The higher the temperature the _________ viscosity.
12. The higher the silica content the ____________ viscosity.
13. The ______ amount of gases the higher the viscosity.
14. The ________ temperature the higher the viscosity.
15. The higher the amount of gas the _________ viscosity.

13. 16-17 two characteristics
Lava with less silica content has low
viscosity that it can travel a great
distance, forming a thin sheet.
1

14. Lava with high silica
content is too
viscous to travel far, and
tends to break up as it
flows.
2
18-19 two characteristics

15. Lava with low amount of gas and high
silica content is very viscous and does
not flow out at all as it rises forming, a
columnar plug in the vent.
3
20-22 three characteristics

16. Lava with low amount of gas as it
rises has high viscosity that it piles
up at a vent resulting
in a dome.
4
23 -24 two characteristics

17. 25. Lava with less silica
content has low viscosity
that it can travel a great
distance, forming a
_____________sheet.

18. 26. Lava with high silica content is
_______ viscous to travel far, and
tends to break up as it flows.
18-19 two characteristics

19. 27. Lava with low amount of
gas and high silica content is
___________and does not flow
out at all as it rises forming, a
columnar plug in the vent.

20. 28. Lava with low amount of
gas as it rises has high
_____________________ that it
piles up at a vent resulting
in a dome.

21. THIRD quarter groupings in sci
9
Grade ix mercury
Acupan, Wenard
Maranoc, Janna Mae
Eclarinal, Diether
Elfalan, Aldrin
Delos Reyes, Carla
Ebal, Ailyn
Palmis, Dianne
Florention, Zyl
Merto, Carren
Hernandez, Joselito
Ecleo, Alfred
Etabis, Elaira
Ebitner, Gabrielle
Eclarinal, Lorie Ann
Marcellano, Rhyzel
Hachuela, Aron
Pader, Winstofeia
Eclarinal, Ally Ariel
Mallari, Erron
Tolentino, Danife
Eclarinal, Mariz
Eding, Beverly
Realizo, Angeline
Nabergas, Rodrigo
Ebilane, Ann Klein
Ealdama, Jayson
Montero, Jamson
Artates, Jansen
Madrogaba, Ma. Monica
Morete, Angela
Rolloque, Ark Jude
Tapar, Shaira
Ortaliza, John Carlo
Penaranda, John
Bahim, Julraiza
Ednalan, Zyanne
Laxamana, Jim Raiza
Moselina, Sheryll
Serrano, Henzon
Camandono Jr., Sornito
Rico, Jezron
Siobal, Gilbert
Dagsaan, Camila
Eduvala, Monica
Empeno, Sigrid
1
4
2 3
5 6
Prepared by: JOHN FLORENTINO E. ECHON, Science Teacher

22. THIRD quarter groupings in sci
9
Grade ix earth
Deysor, Yousef
Golen, Lady Ann
Bacho, Jessie
Bravo, Brenson
Pilon, Lexter
Sison, Fatima
Tanamor, Daisy Mae
Tesoro, Daniela
Vergara, Abegail
Jacang, Mc Angelo
Pascasio, Angela
Elbancol, jason
Bainggan, Jeno
Montero, Donald
Josol, Jelieca
Layon, Michelle
Ponilas, Calvin
Mendoza, Gerald
Bacho, Angelica
Eballar, Andrei
Ebelte, Relly Jay
Melanio, Jomar
Farrales, Jie Ann
Garcia, Nanette
Fineza, Vina
Nacar, Lorence
Esmelo, Alyza Mae
Ecal, Roberto
Echon Jayson
Ebido, Benedict
Ednalaga, Jennifer
Elamparo, Krisha Rose
Espiritu, Sharmaine
Fuentecilla, Kris Mae
Basila, Benedict
Eclarinal, Jeferson
Eclarino, Johmer
Malinao, Jonel
Copiado, Yuri
Ebalobo, Patricia
Eclevia, Reinalyn
Nepomuceno, Christian
Almondia, Regine
Edora, Roden
Elamparo, Aldrin
Fontillas, Roel
Ancheta, Trisha Joy
Chavez, Shiela, Marie
Collado, Liza
1 2 3
4 5 6
Prepared by: JOHN FLORENTINO E. ECHON, Science Teacher