Forces that Change the Earth and Landforms Review3rd Grade
Question 1Volcanoes create new land on the
Earth’s surface when –A. Lava cools and hardens to form
rockB. Magma forms giant underground
chambersC. Saltwater touches lava and forms
steam
Answer• Lava cools and hardens to form rock
Lava is molten rock. When it cools, it hardens into rock. This creates new land.
Question 2A landslide is a most likely
caused by –A. Strong windsB. Breaking rocksC. Heavy rains
AnswerHeavy rains
Heavy rains cause the soil to loosen. This may eventually cause it to slide downhill.
Question 3Which of the following best
describes how an earthquake changes the Earth’s surface?A. Throws rocks and ash into the airB. Violently shifts the surface of the
EarthC. Forces lava through holes in the
ground
Answer• Violently shifts the surface of the Earth
The shifting the of the surface of the earth by an earthquake can cause cracks in the ground.
Question 4Which event forces melted rock
from deep in the earth towards the surface?A. EarthquakesB. LandslidesC. Volcanic eruptions
AnswerVolcanic eruptions
A volcanic eruption causes magma to erupt from underneath the surface of the Earth. Once the magma has erupted, it is called lava.
Question 5_____________________ is the
movement of weathered rock and soil.
AnswerErosion
Question 6A ________________ is an
underwater earthquake.
AnswerTsunami
Question 7A _______________ is the rapid
movement of rocks and soil down a hill.
AnswerLandslide
Question 8______________ is the process of
rocks breaking down into smaller pieces.
AnswerWeathering
Question 9Funnel cloud is another name for
a _____________________.
AnswerTornado
Question 10______________ are slow moving
frozen rivers.
AnswerGlaciers
Question 11An opening in the earth’s crust
from which lava flows is a ----
AnswerVolcano
Question 12A mound of earth with a rounded
top which is smaller than a mountain is a ------
AnswerHill
Question 13A thin natural waterway that
allows water to flow into a lake or ocean is a -----
AnswerRiver
Question 14A thin strip of land that extends
into a body of water is a -----
AnswerPeninsula
Question 15Low land between hills or
mountains is called a -----
AnswerValley
Question 16A large natural area of water
surrounded by land is a -----
AnswerLake
Question 17A large, tall rock that extends
into the air which is larger than a hill is a -----
AnswerMountain
Question 18A natural area of water that is
mostly surrounded by land is a -----
AnswerBay
Question 19An area of land that is completely
surrounded by water is an -----
Answerisland
Question 20A large area of flat land or gently
rolling land is a -----
AnswerPlain