Earth Science Topic #11 Review Game 7 13 19 25 2 8 14 20 26 3 9 15 21 27 4 10 16 22 28 5 11 17 23 29 6 12 18 24 30

250 pts! Most rock gypsum is formed by the a. heating of previously existing foliated bedrock b. cooling and solidification of lava c. compaction and cementation of shells and skeletal remains d. chemical precipitation of minerals from seawater 250 pts!

Different arrangements of tetrahedra in the silicate group of minerals result in differences in the minerals’ a. age, density, and smoothness b. cleavage, color, and abundance c. hardness, cleavage, and crystal shape d. chemical composition, size, and origin 200 pts!

Which statement about the formation of a rock is best supported by the rock cycle? a. Magma must be weathered before it can change to metamorphic rock. b. Sediment must be compacted and cemented before it can change to sedimentary rock. c. Sedimentary rock must melt before it can change to metamorphic rock. d. Metamorphic rock must melt before it can change to sedimentary rock. 200 pts!

150 pts! Which statement is best supported by the diagram? Base your answer on The diagram below shows the index minerals of Mohs hardness scale compared with the hardness of some common objects. 150 pts! Which statement is best supported by the diagram? a. A fingernail will scratch calcite but not gypsum. b. Calcite will be scratched by a copper penny. c. The mineral apatite will scratch topaz. d. A steel file has a hardness of about 7.5.

In which group do the rocks usually have the mineral quartz as part of their composition? a. granite, rhyolite, sandstone, hornfels b. shale, scoria, gneiss, metaconglomerate c. conglomerate, gabbro, rock salt, schist d. breccia, fossil limestone, bituminous coal, siltstone 350 pts!

Base your answer on The diagram below represents a rock consisting of granite pebbles and sand grains cemented together. How does the age of the granite pebbles compare to the age of the rock itself? a. The pebbles are younger than the rock. b. The pebbles are older than the rock. c. The pebbles are the same age as the rock. d. The relative age of the pebbles cannot be determined. 250 pts!

Which rock is sedimentary in origin and formed as a result of chemical processes? a. granite b. shale c. breccia d. dolostone 450 pts!

Which characteristic of an igneous rock would provide the most information about the environment in which the rock solidified? a. color b. texture c. hardness d. streak 300 pts!

500 pts! Which condition makes surface runoff of rainfall most likely? a. The gradient of the surface is low. b. Permeability rate exceeds the rate of rainfall. c. Surface soil pore spaces are filled. d. The porosity of the surface soil is high. 500 pts!

Base your answer on The diagram below represents geological processes that act continuously on Earth to form different rock types. Which table correctly classifies each rock type? A B C D 300 pts!

200 pts! Which mineral is composed of Calcium and Flourine? a. Amphibole b. Calcite c. Hematite d. Fluorite 200 pts!

Base your answer on The cartoon below presents a humorous look at history. 300 pts! What kind of rocks does the complaining rock collector want? a. felsic volcanic rocks b. clastic sedimentary rocks c. inorganic sedimentary rocks d. regionally metamorphosed rocks

Base your answer on The fossil below was found in surface bedrock in the eastern United States. 250 pts! Which statement best describes the formation of the rock containing this fossil? a. The rock was formed by the metamorphism of sedimentary rock deposited in a terrestrial environment during the Cretaceous Period. b. The rock was formed by the compaction and cementation of sediments deposited in a terrestrial environment during the Triassic Period. c. The rock was formed by the compaction and cementation of sediments deposited in a marine environment during the Cambrian Period. d. The rock was formed from the solidification of magma in a marine environment during the Triassic Period.

A coarse-grained rock contains 50% plagioclase, 45% pyroxene, and 5% hornblende. This rock should be identified as a. basalt b. granite c. rhyolite d. gabbro 150 pts!

Which of the following elements is not found in Plagioclase Feldspar? a. Na b. Al c. Si d. Pb 300 pts!

Which igneous rock has a vesicular texture and a felsic composition? a. pumice b. basalt c. granite d. scoria 400 pts!

Base your answer on A student classified the rock below as sedimentary. 150 pts! Which observation about the rock best supports this classification? a. The rock is composed of several minerals. b. The rock has a vesicular texture. c. The rock contains fragments of other rocks. d. The rock shows distorted and stretched pebbles.

Sedimentary rocks of organic origin would most likely be formed from a. sediments eroded by running water b. materials deposited by glaciers c. shells of marine animals d. particles removed from the atmosphere by precipitation 500 pts!

Base your answer on on the data table below, which shows information about the four largest asteroids found in our solar system. The surface rocks of Vesta contain significant amounts of the mineral pyroxene. If rocks on Vesta are similar to rocks on Earth, which two igneous rocks would most likely be found on the surface of Vesta? a. basalt and scoria b. dunite and granite c. peridotite and pumice d. rhyolite and pegmatite 300 pts!

Base your answer on The diagrams below show the crystal shapes of two minerals. 300 pts! Quartz and halite have different crystal shapes primarily because a. light reflects from crystal surfaces b. energy is released during crystallization c. of impurities that produce surface variations d. of the internal arrangement of the atoms

Base your answer on The diagrams below illustrate a specific property of certain minerals. This property is most closely related to the a. arrangement of atoms in the mineral b. impurities found in the mineral c. softness of the mineral d. density of the mineral 500 pts!

400 pts! Where are the Earth's sedimentary rocks generally found? a. in regions of recent volcanic activity b. deep within the Earth's crust c. along the mid-ocean ridges d. as a thin layer covering much of the continents 400 pts!

Which sequence of events occurs in the formation of a sedimentary rock? B C 400 pts! D

Base your answer on the block diagram below which shows a cross section of Earth's crust. Letter A identifies a lake, and letters B through G represent different types of bedrock. Rock C most likely resulted from the a. rapid cooling of lava from volcanic eruptions . b. regional metamorphism of a previously existing rock c. compaction and cementation of angular quartz fragments d. precipitation of minerals from evaporating water 300 pts!

300 pts! Which rock is only formed by regional metamorphism? a. slate b. hornfels c. dunite d. marble 300 pts!

Particles of sediment collected from a lake bottom averaged 1 Particles of sediment collected from a lake bottom averaged 1.2 centimeters in diameter. If left on the lake bottom to become buried by more sediment and compressed into rock, these particles would form a. sandstone b. conglomerate c. quartzite d. granite 450 pts!

Base your answer on the cross section below Base your answer on the cross section below. Rock units are labeled 1 through 8. The line between A and A' indicates an unconformity. Which rock most probably formed in the contact metamorphic zone within rock unit 6? a. marble b. basalt c. quartzite d. hornfels 200 pts!

Which statement best describes the percentage of plagioclase feldspars in a sample of gabbro? a. The percentage of plagioclase feldspars in gabbro can vary. b. Gabbro always contains less plagioclase than pyroxene. c. Plagioclase feldspars always make up 25% of a gabbro sample. d. Gabbro contains no plagioclase feldspars. 400 pts!

Halite has three cleavage directions at 90º to each other Halite has three cleavage directions at 90º to each other. Which model best represents the shape of a broken sample of halite? A B 450 pts! C D

Base your answer on The diagram below shows a rock with deformed structure and intergrown crystals. The rock was probably formed by a. sediments that were deposited on the ocean floor b. heat and pressure that changed a preexisting rock c. volcanic lava that cooled on Earth’s surface d. a meteor impact on Earth’s surface 300 pts!