What do we call the center of the Earth?
  • Mantle
  • Crust
  • Apple
  • Core
Which is the hottest part of the Earth?
  • The core
  • The mantle
  • The crust
  • The Asthenosphere
Which is the coolest part of the planet?
  • inner core
  • outer core
  • mantle
  • crust
Which two metals are thought to be found in the core?
  • iron and steel
  • iron and nickel
  • gold and silver
  • iron and copper
Which layer of the Earth is the most dense?
  • Crust
  • Inner core
  • Mantle
  • Outer core
When layers of the Earth formed, the least dense layer..
  • sank to the bottom.
  • mixed with the other layers.
  • floated to the top.
When the early Earth began to have molten rock, layers formed because of their
  • shapes.
  • densities.
  • water.
  • No layers formed
Which portion of the crust is thicker?
  • Continental
  • Oceanic
Which letter represents the entire mantle?
sc-8 sb-7-Earth Structureimg_no 53.jpg
  • A
  • C
  • D
  • F
Which layer of Earth is liquid metal?
  • Outer Core
  • Mantle
  • Inner Core
  • Asthenosphere
Which is the hottest layer and has the most pressure on it?
  • Crust
  • Mantle
  • Outer Core
  • Inner core
The cycle that powers the ocean currents, weather, and tectonic plates it called
  • conduction current
  • radiation
  • condition current
  • convection current
What is the heat source for convection in the mantle?
  • the Crust
  • the Mantle
  • the Core
Heat transfer by convection is caused by differences in what two things:
  • Thickness and material
  • Weight and electricity
  • Temperature and density
In convection, COOL air
  • Rises
  • Sinks
Warm air is __________ dense than cold air and rises creating convection currents.
  • more
  • less
Analyze the image. The red arrows represent warm water rising and the blue arrows represent cold water sinking. What type of heat transfer is responsible for this movement?
sc-8 sb-7-Earth Structureimg_no 54.jpg
  • conduction
  • convection
  • radiation
What is an example of a convection current?
  • Touching a hot spoon that was in a soup bowl.
  • Feeling the suns rays on a nice summer day.
  • Touching an iron skillet after cooking and feeling the heat.
  • Movement of gas in a hot air balloon.
Which picture shows material that is more dense?
sc-8 sb-7-Earth Structureimg_no 55.jpg
  • The picture of the left
  • The picture on the right
Why does ice float?
  • Due to convection currents
  • It is more dense than water.
  • It is less dense than water.
Protects us from harmful UV rays
  • Oxygen
  • Carbon monoxide
  • Ozone layer
  • Carbon dioxide
How hot is it in the Earth's center?
  • 600 Celcius
  • 6000 Celcius
  • 6 million Celcius
  • 451 Fahrenheit 
Which of these layers is the largest?
  • lithosphere
  • asthenosphere
  • outer core
  • mantle
What layer is between the inner core and the mantle?
  • asthenosphere
  • crust
  • outer core
  • lithosphere
How far is it to the center of the Earth in miles?
  • 4000
  • 400
  • 40,000
  • 27408
Which layer of the Earth is the least dense?
  • Crust
  • Inner core
  • Mantle
  • Outer core
Which letter represents the entire mantle?
sc-7 sb-1-Earth Structureimg_no 374.jpg
  • A
  • C
  • D
  • F
Which layer represents the lithosphere?
sc-7 sb-1-Earth Structureimg_no 375.jpg
  • A
  • B
  • C
  • D
Which compositional layer is made of iron and some nickel?
  • crust
  • mantle
  • core
Which layer is made up of iron and nickel?
sc-7 sb-3-Earth Structureimg_no 59.jpg
  • Crust
  • Mantle
  • Inner Core
  • Lithosphere
What two main factors did scientists claim affect Earth's formation?
  • Rock explosion and collision
  • Mass and Volume
  • Gravity and Density
  • Magic and chance
What affects the strength of gravity between two objects?
  • The density of the objects
  • The mass of the objects
  • The distance between the objects
  • Both the mass and the distance between the objects
What are the features of Earth's crust?
  • made of iron and nickel, there are two layers, a liquid outer and solid inner
  • made of hot but solid rock
  • layer of solid rock including dry land and ocean floor.
What are the features of Earth's mantle?
  • made of iron and nickel, there are two layers, a liquid outer and solid inner
  • made of hot but solid rock
  • layer of solid rock including dry land and ocean floor.
What are the features of Earth's core?
  • made of iron and nickel, there are two layers, a liquid outer and solid inner
  • made of hot but solid rock
  • layer of solid rock including dry land and ocean floor.
Earth's core is mostly made of iron and ________.
  • sand
  • nickel
  • mercury
  • rocks
Force pushing on an area
  • speed
  • pressure
  • temperature
  • momentum
Dense ball of metal at the center of the Earth.
  • crust
  • mantle
  • inner core
  • outer core
pressure and temperature ________ as you move deeper below Earth's surface
  • increase
  • decrease
  • stay the same
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