Our Planet
How deeply into the Earth’s crust have we been able to drill?
About 7 miles
Which process is a type of chemical weathering?
a: Oxidation
b: freeze/thaw
c: carbon dioxide reaction
Oxidation
In which states are you most likely to have experienced a hurricane?
a: Wyoming and Montana
b: Missouri and Illinois
c: Florida and Louisiana
Florida and Louisiana
What is erosion?
Which part of the Earth’s interior is the largest?
Mantle
How are glaciers formed?
d: Over time, snow compacts into dense ice.
In the United States, most earthquakes occur ______.
a: in January, February and March
b: along the fault lines in California, Washington and Oregon
c: at the same time as the volcano in Asia
b: along the fault lines in California, Washington and Oregon
Name the 4 water cycle processes.
Evaporation, condensation, precipitation and collection.
Earth’s water cycle is most closely associated with which sphere?
hydrosphere
What percentage of the Earth’s fresh water do glaciers hold?
85%
List 4 natural disasters
Tornadoes, hurricanes, earthquakes and volcanoes.
Name the 4 spheres of the Earth.
Hydrosphere, Lithosphere (geosphere), atmosphere, and biosphere.
How does the Earth’s atmosphere interact with the sun’s rays?
a: The atmosphere absorbs the sun’s energy and holds it as heat to warm the Earth.
Effects of which of the following processes that change and shape the Earth would most likely be seen immediately?
Volcano
What are tsunamis?
A huge wave of water that crashes on shore due to a disturbance in the ocean.
Living plants are most closely related to which sphere?
Biosphere
The oceanic crust of the Earth is fairly thin. How thick is it?
It is 4 to 7 miles thick
What are the five main causes of physical weathering?
Physical weathering may be caused by people or animals wearing rock down, wind or water carrying rocks and sand over the surface, roots pushing on rock, pressure from within the Earth, and the effects of freeze/thaw.
Name one way how the Earth is never really still. It must be an example from Studies Weekly article.
Water is constantly changing between solid, liquid and vapor; the sun’s energy warms the Earth unevenly and causes air currents and storm fronts. Even the lithosphere, which we think of as solid and fi rm, is actually slowly moving. Tectonic plates are shifting, and inside the Earth, magma is heating and moving into empty spaces and creating pressure—pressure that needs to be released at the Earth’s surface.
What is the difference between physical and chemical weathering?
Physical weathering is through the force of another substance like ice, water or wind. Chemical weathering is when a reaction occurs between rock and another substance.