Assessment 2 - Earth's Internal Heat Sources

What happens to the temperature as you move from the surface of Earth to its inner most layer?

• The temperature decreases as the amount of heat increases.

• The temperature fluctuates from the crust done to the core.

• The temperature stays the same in all the layers.

• The temperature increases from the crust down to the core.

Tags

NGSS.HS-ESS2-3

As you move from the surface of Earth to the inner core, what happens to the density of the materials of each layer?

• Density of materials decreases due to its composition.

• Density of materials may increase but will decrease from time to time.

• Density of the materials increases from the crust to the core.

• Density of materials remains the same in all the layers.

Tags

NGSS.HS-ESS2-3

What prevents the iron and other minimal amount of some elements in the core from melting?

• Density

• Pressure

• Temperature

• Vapor

Tags

NGSS.HS-ESS2-3

How do naturally occurring isotopes play a vital role in the production of earth’s internal heat?

• Due to chemical stability

• Due to its abundance and emission of heat when it decays.

• Due to its high energy capacity

• Due to the heat it releases as it is subjected to low temperature.

Tags

NGSS.HS-PS1-8

Heat flows from the different layers to the earth. What type of heat transport occurs between the mantle and the core?

• Conduction

• Convection

• Radiation

• Sublimation

Tags

NGSS.HS-ESS2-3

Which of the following is an isotope that is present in the core of the earth which contributes to immense heat in its interior?

• Uranium – 235

• Uranium – 523

• Uranium – 253

• Uranium – 325

Tags

NGSS.HS-PS1-8

Which of the following terms pertains to the spontaneous breakdown of an atomic nucleus which results to the release of energy and matter from the nucleus?

• Convection

• Gravitational pressure

• Radiation

• Radioactive decay

Tags

NGSS.HS-PS1-8

What happens to the amount of pressure as you move from the outermost layer of Earth to its inner most layer?

• The amount of pressure remains the same.

• The pressure will increase then decrease from each layer.

• The amount of pressure increases from the crust down to the core.

• The amount of pressure decreases from the outermost layer to the innermost layer.

Why do you think Earth is considered as a thermal engine?

• Too much pressure on the crust causes materials to be molted which gives large amount of heat.

• The energy coming from the sun gives heat tremendous heat on the surface.

• Decay of isotopes contributes to the internal heat of the earth.

• As a natural satellite the moon gives thermal energy to earth.

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS1-4

Why does Earth’s internal heat builds up due to gravitational pressure?

• Because the escape of heat from Earth’s surface is greater than the heat generated.

• Heat cannot escape from the interior of the earth since it is a closed system.

• The amount of heat that can be generated on the earth’s interior is tremendous while lesser amount can escape on the surface.

• The amount of heat that can be released on the surface is greater.

Tags

NGSS.HS-ESS2-3