PA-Earth and Space Science A

1. The image shows the locations of volcanoes around the world. Which statements are supported by the information in the image?

Many volcanoes are on the eastern coasts of Aisa

10. Which event causes a volcanic eruption? magma turning into lava water being heated by magma explosions occurring in magma chambers magma cutting through older rocks

explosions occurring in magma chambers

Which statements accurately describe hot spots? Check all that apply. A. Hot spots can cause volcanoes. B. Hot spots can cause geothermal activity like geysers and mud pots. C. The Hawaiian Islands non formed over a hot spot. D. Hot spots occur only at plate boundaries. E. Yellowstone National Park is a geothermal hot spot.

A B C E

Which statements accurately describe volcanic landforms? Check all that apply A. Batholiths cooled deep inside Earth. B. Dikes cut across horizontally C. A geyser spouts water that is heated deep inside earth D. Dome mountains form from cinder cones. E. Geysers and hot springs are caused by hydrothermal activity.

A. Batholiths cooled deep inside Earth C. A geyser spouts water that is heated deep inside earth

How do volcanoes function as a disruptive force? Check all that apply. A. force people to flee their homes B. use massive earthquakes C. pollute the air with volcanic smoke D. provide fertile soil for plant growth E. make airplanes fly around ash clouds

A. force people to flee their homes C. pollute the air with volcanic smoke E. make airplanes fly around ash clouds

Place the descriptions in the correct categories. ~At convergent boundaries : ~At divergent bounderies : rift valleys At Convergent Boundaries At Divergent Boundaries plates pulling apart magma breaks through crust subduction volcanic mountains island arc magma flows from cracks mid-ocean ridges

At convergent boundaries : subduction magma breaks through the crust island arc volcanic mountains At divergent bounderies : rift valleys magma flows from cracks mid-ocean ridges plates pulling apart

Use the drop-down menus to complete the paragraph. As magma rises, pressure ___________causing dissolved gases to expand and form bubbles. The size of the bubbles increases, exerting a lot of force. The force of the expanding gases pushes the magma from the _______ up through the _______.Molten rock and gas explodes through the _______ which is at or near the top of the volcano.

Decreases Magma chamber Pipe Vent

Use what you have learned about the stages and monitoring of volcanic activity to choose the correct answer from the drop-down menus. A volcano that will never erupt again is_______ Mount Aetna on Sicily is a(n) _______volcano because it produces earthquakes and lava flows. This volcano is_______ having no activity since its last eruption in 1707

EXTINCT ACTIVE DORMANT

Fill in the blanks to describe the work of Ben Kennedy, a volcanologist who works in New Zealand. To learn more about why his pumice sample was shrinking, Ben Kennedy studied_______ . This material is similar to pumice because both are full of air _______ Kennedy found that the shrinking had to do with molten rock's surface_______, which is the force that holds a droplet of water together.

FOAM BUBBLES TENSION

David Fee studies sound waves so deep and low that humans cannot hear them. What are these low frequencies called? infrared seismology geosound infrasound

Infrasound

5. Which statements describe convergent boundaries?

Subduction occurs.

8. Which statement explains what happens as magma rises inside a volcano?

The magmatic Pressure decreases.

Use the drop-down menus to complete each statement about Steven Businger's work with volcanoes in Hawaii. Volcanoes release a hazy smoke called _____Steven Businger helped develop a ____that predicts how this smoke spreads. To model the smoke conditions, scientists measure the amount of ____gas a volcano is spewing.

Vog Computer Model Sulfur dioxide

Which tasks does a volcanologist do to study volcanoes? Check all that apply. A. use autoclaves to imitate the interior of a volcano B. simulate volcanic explosions with computer programs C. study lava samples D. listen to the sounds of the interior of a volcano E. provide daily vog forecasts on TV news

a. use autoclaves to imitate the interior of a volcano b. simulate volcanic explosions with computer programs c. study lava samples d. listen to the sounds of the interior of a volcano

( unit test for Volcanoes )

all answers are correct checked after test

2. Earth's surface is constantly changed by erosion and deposition. Erosion breaks down Earth's surface by carrying materials away from an area. Deposition builds up Earth's surface when these materials are deposited in an area over time. Which landform results when erosion occurs during volcanic eruptions, but deposition does not directly contribute to creating the landform? volcanic soil cinder core caldera lava plateau

caldera

7. Which features are created on the exterior of a volcano when it erupts? magma chamber crater hot spot boundary

crater

6. Which words identify stages of volcanic activity?

dormant

3. Mount St. Helens is a volcano that erupted with great force in 1980. Which phrases best describe this eruption? quiet eruption gentle lava flows magma low in silica high -viscosity magma

high -viscosity magma

4. Which landform results from the deposition of materials in a valley during volcanic eruptions? sill mud pot caldera lava plateau

lava plateau

9. Which phrase describes a lava plateau? steep-sided mountain gently sloping mountain hardened magma in a pipe volcanic material in valleys

volcanic material in valleys

Match the landform to its description. caldera shield volcano lava plateau cinder cone volcanic soil rich in nutrients bowl-shaped depression wide summit, gentle slope material fills in valleys made of pieces of lava

volcanic soil = rich in nutrients Lava plateau = material fills in valleys Caldera = bowl-shaped depression Cinder cone = made of pieces of lava Shield volcano = wide summit, gentle slope

Place the descriptions in the correct category. ~Quiet ~Explosive Hawaii gases trapped in pipe high silica, high viscosity low silica, low viscosity gases gently bubble out Mount St. Helens

~Quiet low silica, low viscosity gases gently bubble out Hawaii ~Explosive gases trapped in pipe high silica, high viscosity Mount St. Helens