Why do denser materials sink to the core of a planet?

Gravity pulls them toward the center

They are lighter than other materials

They cool faster than less dense materials.

Impacts during planetary formation generated the first heat then

converting gravitational potential energy into kinetic and thermal energy

converting kinetic energy into gravitational potential energy and thermal energy

converting into convection currents in the inner core and mantle

converting into continental and oceanic crust

The density increases with depth due to

Increasing pressure and the presence of denser materials.

Decreasing pressure and the presence of less dense materials.

Decreasing pressure and the presence of denser materials.

Increasing pressure and the presence of less dense materials.

The chemical layers of the earth are divided into

lithosphere, mesosphere, outer core, inner core

Oceanic crust, continental crust, Lithosphere, mesosphere, outer core, inner core

The mechanical layers of the earth are divided into?

lithosphere, mesosphere, outer core, inner core

Oceanic crust, continental crust, lithosphere, mesosphere, outer core, inner core.

What is an energy transformation?

Changing energy from one form to another

Losing energy to the surroundings

What role does convection play in moving energy?

It moves heat by the flow of fluids

What directly drives the movement of tectonic plates, leading to the creation of mountains, volcanic activity, and seismic events like earthquakes?

The convection currents in the Outer Core

What happens during convection currents?

Hot fluid rises and cool fluid sinks

Cool fluid rises and hot fluid sinks

Fluids combine into a single layer

Where is the density of the mantle's material greater?

The bottom of the convection current

The density is the same throughout the mantle

What causes the convection cell to turn to the right at Point B?

Rising material/magma reaches the lithosphere and cannot continue to rise, causing it to turn

What happens to the temperature and density of the material between points D and A?

The temperature rises, and the density decreases

Both temperature and density increase

Both temperature and density decrease

The temperature drops, and the density increases

What do seismic waves tell us about Earth's interior?

They provide information about the different layers inside Earth.

They reveal that Earth's interior is completely solid.

They show that Earth's interior is made of gas.

They only tell us about the surface of Earth.

Both P and S waves can travel through

Solids but will travel at different speeds

Liquids and solids at same speed

Liquids and solids at different speeds

Solids but will travel at the same speed

Why is it important to understand the behavior of seismic waves?

To understand the structure of Earth's interior

To measure the temperature of Earth's core

What is a characteristic of P-waves as they travel through different layers of Earth?

They travel faster in more dense layers.

They travel at the same speed in all layers.

They travel faster in less dense layers.

They are stopped by the Earth's mantle.

8ESS1 Unit Test - Vocabulary and Lessons 1-3

Authored by DEBORAH MORAGA

Science

8th Grade

NGSS covered

Used 5+ times

8ESS1 Unit Test - Vocabulary and Lessons 1-3

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35 questions

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MULTIPLE CHOICE QUESTION

30 sec • 2 pts

The layer below the crust, much thicker and made of hot, semi-solid rock that can flow slowly is called .

Crust

Mantle

Outer Core

Lithosphere

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

The process where gravity pulls heavier materials to the center of a planet, creating layers inside.

Convection Currents

Radioactive Decay

Planetary Differentiation

Seismic Energy

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

A type of seismic wave, can travel only through solids, and moves in a side to side motion

Seismic Waves

Convection Currents

P-Waves

S-Waves

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Circular movements in the mantle caused by hot magma rising near Earth’s core and cooler magma sinking.

Convection Currents

Seismic Waves

Asthenosphere

Lithosphere

Tags

NGSS.MS-ESS2-1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

The process in which atoms break down and release heat energy, helping keep the inside of the Earth hot.

Seismic Waves

Radioactive Decay

Convection Currents

Planetary Differentiation

Tags

NGSS.MS-ESS2-1

NGSS.MS-PS1-4

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

How would label the type of energy when materials move inside Earth?

Solar energy

Electrical energy

Kinetic energy

Thermal energy

Tags

NGSS.MS-ESS2-1

MULTIPLE CHOICE QUESTION

30 sec • 2 pts

What process describes the formation of Earth's layers?

Erosion

Weathering

Planetary differentiation

Plate tectonics

Tags

NGSS.MS-ESS2-2

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8ESS1 Unit Test - Vocabulary and Lessons 1-3

The layer below the crust, much thicker and made of hot, semi-solid rock that can flow slowly is called .

The process where gravity pulls heavier materials to the center of a planet, creating layers inside.

A type of seismic wave, can travel only through solids, and moves in a side to side motion

Circular movements in the mantle caused by hot magma rising near Earth’s core and cooler magma sinking.

The process in which atoms break down and release heat energy, helping keep the inside of the Earth hot.

How would label the type of energy when materials move inside Earth?

What process describes the formation of Earth's layers?

Which of the following contributes to the heat inside the Earth?

Why do denser materials sink to the core of a planet?

Impacts during planetary formation generated the first heat then

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