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Rocks

Test Description: Identifying the 3 Types of Rocks and their characteristics

Instructions: Answer all questions to get your test result.

1) Metamorphic rocks whose minerals are arranged in layers or bands are called

Afoliated Bunfoliated Cnonclastic Dclastic

2) Heat and pressure can transform igneous rocks into metamorphic rocks. What processes can transform igenous rock into sedimentary rock?

Arifting and subduction Bheat and pressure Cevaporation and condensation Derosion and sedimentation

3) More often than metamorphic or igneous rock, sedimentary rocks have

Amany holes from trapped gases Ba glassy appearance Cnumerous fossils Dlarge quartz crystals

4) Which of these can determine the size of grains in igneous rocks?

Acooling rate of molten rock Bdistance from a plate boundary Csize of the volcano Damount of rare minerals

5) Rocks formed by the cementing of weathered materials are called

Amagma Bbasalt Csedimentary rocks Dextrusive igneous rocks

6) Extrusive rocks have small grains because they

Aharden underground Bhave a rough mixture Ccontain rare minerals Dcool quickly

7) What do all rocks have in common?

Athey are formed on Earth's surface Bthey contain minerals Cthey show cleavage Dthey are organically formed

8) Because granite cools below the surface of the Earth, it is

Aan igneous extrusive rock Ban igneous intrusive rock Ca metamorphic rock Da sedimentary rock

9) Igneous rocks are formed by

Aheat and pressure on existing rocks Bevaporation of water, leaving solids behind Ccooling and hardening of molten rock Dlayers of mud on the bottom of a lake

10) While on vacation, a student visits the area around a volcano that has recently erupted. The student can expect to find samples of

Aclastic sedimentary rock Bchemically formed sedimentary rock Cnonfoliated metamorphic rock Dextrusive igneous rock

*select an answer for all questions

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