EARTH SCIENCE CLICKER QUESTIONS Clicker questions prepared by

Clicker Question 1 What is the name of the volcano that erupted in 79 c. e. (current era), destroying the city of Pompeii? a. Mt. Pele b. Mt. Rushmore c. Mt. St. Helens d. Mt. Fuji e. Mt. Vesuvius

Clicker Question 1 Answer What is the name of the volcano that erupted in 79 c. e. (current era), destroying the city of Pompeii? a. Mt. Pele b. Mt. Rushmore c. Mt. St. Helens d. Mt. Fuji e. Mt. Vesuvius

Clicker Question 2 The melting associated with the addition of carbon dioxide (CO 2) or water (H 2 O) to rocks is referred to as a. pressure melting. b. decompression melting. c. flux melting. d. subduction of volatiles. e. pressure addition.

Clicker Question 2 Answer The melting associated with the addition of carbon dioxide (CO 2) or water (H 2 O) to rocks is referred to as a. pressure melting. b. decompression melting. c. flux melting. d. subduction of volatiles. e. pressure addition.

Clicker Question 3 A magma high in silica (Si. O 2) is called a. mafic. b. magma. c. granite. d. basalt. e. felsic.

Clicker Question 3 Answer A magma high in silica (Si. O 2) is called a. mafic. b. magma. c. granite. d. basalt. e. felsic.

Clicker Question 4 When gas bubbles remain trapped in a magma or lava even after the melt freezes, the resulting holes in the rock are called a. corpuscles. b. vesicles. crystals. d. aerosols. e. foci.

Clicker Question 4 Answer When gas bubbles remain trapped in a magma or lava even after the melt freezes, the resulting holes in the rock are called a. corpuscles. b. vesicles. crystals. d. aerosols. e. foci.

Clicker Question 5 The sequence of crystallization of minerals as a magma cools is known as Bowen’s a. Assimilation. b. Reaction Series. c. Law of Crystallization. d. Overreaction Process. e. Fluid to Solid Series.

Clicker Question 5 Answer The sequence of crystallization of minerals as a magma cools is known as Bowen’s a. Assimilation. b. Reaction Series. c. Law of Crystallization. d. Overreaction Process. e. Fluid to Solid Series.

Clicker Question 6 Rocks produced by freezing of magma underground is referred to as a. extrusive igneous rock. b. rocky crystallizations. c. intrusive igneous rock. d. Bowen’s crystallized rock. e. wall rock formations.

Clicker Question 6 Answer Rocks produced by freezing of magma underground is referred to as a. extrusive igneous rock. b. rocky crystallizations. c. intrusive igneous rock. d. Bowen’s crystallized rock. e. wall rock formations.

Clicker Question 7 Hot mafic lava can be described best as _____ silica and _____ viscosity. a. Low; high b. High; high c. Medium; medium d. Low; low e. High; low

Clicker Question 7 Answer Hot mafic lava can be described best as _____ silica and _____ viscosity. a. Low; high b. High; high c. Medium; medium d. Low; low e. High; low

Clicker Question 8 A crystalline igneous rock with crystals too small to see without magnification is said to have a(n) _____ texture. a. porphyritic b. phaneritic c. aphanitic d. phenocrystic e. fragmental

Clicker Question 8 Answer A crystalline igneous rock with crystals too small to see without magnification is said to have a(n) _____ texture. a. porphyritic b. phaneritic c. aphanitic d. phenocrystic e. fragmental

Clicker Question 9 A pyroclastic flow is a a. slow volcanic flow. b. subsurface volcanic flow. c. high-altitude volcanic event. d. ground hugging, scalding avalanche of volcanic ash and gas. e. volcanic explosion under and ice sheet.

Clicker Question 9 Answer A pyroclastic flow is a a. slow volcanic flow. b. subsurface volcanic flow. c. high-altitude volcanic event. d. ground hugging, scalding avalanche of volcanic ash and gas. e. volcanic explosion under and ice sheet.

Clicker Question 10 An eruption that emits low viscosity lava fountains of mafic lava that can flow long distances is referred to as a(n) _____ eruption. a. explosive b. Strombolian c. epidermal d. effusive e. Plinian

Clicker Question 10 Answer An eruption that emits low viscosity lava fountains of mafic lava that can flow long distances is referred to as a(n) _____ eruption. a. explosive b. Strombolian c. epidermal d. effusive e. Plinian

Clicker Question 11 Hot, thin, runny mafic lava flows that have low silica content typically produce a. rhyolite. b. andesite. c. basalt. d. granite. limestone.

Clicker Question 11 Answer Hot, thin, runny mafic lava flows that have low silica content typically produce a. rhyolite. b. andesite. c. basalt. d. granite. limestone.

Clicker Question 12 Large volcanoes that have a low, broad shape and are made of successive flows of low viscosity lava are called a. stratovolcanoes. b. shield volcanoes. cinder cones. d. ignimbrites. e. composite volcanoes.

Clicker Question 12 Answer Large volcanoes that have a low, broad shape and are made of successive flows of low viscosity lava are called a. stratovolcanoes. b. shield volcanoes. cinder cones. d. ignimbrites. e. composite volcanoes.

Clicker Question 13 Yellowstone is a classic example of which type of volcanism? a. Continental rift b. Mid-ocean ridge c. Convergent volcanic arc d. Continental hot spot e. Island arc

Clicker Question 13 Answer Yellowstone is a classic example of which type of volcanism? a. Continental rift b. Mid-ocean ridge c. Convergent volcanic arc d. Continental hot spot e. Island arc

Clicker Question 14 A large circular depression created by the collapse of the volcano into the drained magma chamber is called a a. caldera. b. flank vent. crater. d. fissure. conduit.

Clicker Question 14 Answer A large circular depression created by the collapse of the volcano into the drained magma chamber is called a a. caldera. b. flank vent. crater. d. fissure. conduit.

Clicker Question 15 If a volcano has erupted within the last 10, 000 years but is not currently erupting, geologists refer to it as a. active. b. extinct. c. dormant. d. recurring. e. rhyolitic.

Clicker Question 15 Answer If a volcano has erupted within the last 10, 000 years but is not currently erupting, geologists refer to it as a. active. b. extinct. c. dormant. d. recurring. e. rhyolitic.