1. The word igneous is derived from the Latin word for _________, ignis or ignus. 2. Igneous rocks are commonly found in the _________and _________ the Earth, specifically in divergent boundaries, convergent boundaries, subduction zones and hotspots. 3. Igneous rocks are formed through the process of _________ and _________ of molten rocks; magma and lava. 4. When hot, molten rocks reach the surface of the earth, they undergo changes in _________and _________ causing them to _________, _________and _________. 5. In terms of formation, igneous rocks can be classified into two; _________ and _________ rocks. 6. Intrusive rocks are formed solidified _________ while extrusive rocks are formed from solidified _________. 7. Intrusive rocks cool _________ while extrusive rocks cool _________. 8. Intrusive rocks have _________ grains and crystals while extrusive rocks have _________ grains and crystals. 9. Examples of intrusive rocks are _________, _________, and _________. 10.Examples of extrusive rocks are _________, _________, _________, and _________. 11.Igneous rocks can also be classified according to their composition. They are composed of ________. 12.If there is ________ of silica in the magma, its minerals will precipitate. 13.If there is ________ of silica in the magma, its minerals will not precipitate and will not be present in the igneous rocks. 14.There are four classifications of igneous rocks based on silica content; ________, ________, ________ and ________. 15.________ has the highest amount of silica while ________ has the lowest. 16.________ is the most viscous while ________ is the least. 17.________ has the darkest color while ________ has the lightest 18.________ is the densest while ________ is the lightest. 19.________ is exposed to the highest temperature while ________ is exposed to the lowest temperature. 20.The higher the silica content is, the ________ the color is and the ________ the silica content is, the darker the color is.
Answers
Answer:
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SOLUTION :
1 . Fire
2 . Lower crust and Upper mantle .
3 . Cooling and Solidification of magma ( or lava ) .
4 . Temperature and Pressure .
Cool , Solidify , Crystallize .
5 . Intrusive rocks and Extrusive rocks .
6 . Magma , Magma
7 . Magma , Magma
8 . Big ( naked ) , Fine .
9 . Granite , Gabbro , Diorite .
10 . Andesite , Basalt , Obsidian , Pumice .
11 . Silicate mineral
14 . Felsic , Mafic , Intermediate , Ultramafic .
15 . Felsic , Mafic
16 . Mafic , Felsic .
17 . Mafic , Felsic .
18 . Mafic , Felsic .
19 . Felsic , Mafic .
20 . Light , Dark .