Download Bundle 1 - Humble ISD

HISD
Elementary Science
Internal Forces
Unit Connections
Water and wind usually cause changes to the Earth’s surface slowly,
but plate movement causes changes quickly.
 How can plates pushing together change the Earth’s surface?
 How can plates pulling apart change the Earth’s surface?
 How can plates sliding past each other cause changes the
Earth’s surface?
Misconceptions
 Volcanoes are randomly located across the earth’s surface.
Fact: The majority of volcanoes are located along tectonic
plate boundaries. “Ring of Fire” is the name given to an area
along the border of the Pacific Plate with a high concentration
of volcanoes.
 Earthquakes happen randomly across the earth’s surface.
Fact: As with volcanoes, most of the world’s seismic activity is
associated with tectonic plate boundaries and fault lines.
 Only continents move.
Fact: Tectonic plates are composed of oceanic crust and
thicker continental crust, and move as a whole.
 Plate motion is rapid.
Fact: The relative movement of the plates typically varies from
zero to 100 mm annually.
 Ocean tides move the Earth’s tectonic plates.
Fact: The internal heat of the Earth causes the plates to move.
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Concept & Processes & Skills
Natural forces can cause changes in landforms such as
mountains, plateaus, canyons, and cliffs.
Some changes in the Earth’s surface are a result of plate
tectonics.
Movement of the plates, resulting in earthquakes and
volcanoes, can cause rapid changes to the earth’s surface.
Destructive natural forces include moving water, wind, rain,
glaciers, and earthquakes.
Constructive natural forces include deposition, plate
movement, and volcanoes.
Graphic Cues
Do not
focus on
terms
Student Outcomes
Explain the relationship between plate tectonics and earthquakes and volcanoes.
 Where do most volcanoes happen? Why?
 Where do most earthquakes happen? Why?
 What are tectonic plates? What do they do?
 How can we describe the Earth’s crust?
Identify how earthquakes change the surface of the Earth.
 Do earthquakes cause slow or rapid changes? Why?
 What happens to the crust during an earthquake?
 What happens to buildings and structures during an earthquake?
 Are all earthquakes the same?
 When do earthquakes happen?
Identify how volcanoes change the surface of the Earth.
 Do volcanoes cause slow or rapid changes? Why?
 What happens to the crust during a volcanic eruption?
 What is lava/magma?
 What happens when lava cools? What does it form?
 How long does it take lava to cool?
 How long does it take for new land to form?
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Plate tectonics
Earthquake
Volcano
Magma
Lava
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Vocabulary Focus
Key Vocabulary for the Week
Rock layer
Sedimentary rock
Canyon
Delta
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Mountain
Hill
Valley
Plain
Landform