Earth Science Word Scramble
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| Question | Answer |
| What are the three layers of earth? | the crust, the mantle, and the core |
| How earth layer classified as crust, mantle, and core based on? | the compounds that make up each layer |
| What is a compound? | a substance composed of two or more elements |
| Which layers are made up of less dense compound? | the crust and the mantle |
| Which layer is made up of the densest compound? | the core |
| What is crust? | the outermost layer of the Earth |
| Which layer is characterized by the following? The outermost layer of the Earth. It is 5 to 100 km thick. It is the thinnest layer of the Earth; temperature of 0-1000 degree celcius | the crust |
| What are the two types of crust? | continental and oceanic |
| ___________ crust is thinner and denser than ___________ crust | oceanic, continental |
| Which layer is characterized by the following? much thicker than the crust and contains most of the Earth’s mass; exist between the crust and the core; denser than the crust; 2900Km thick; temperature of 1000-3700 degree celcius | the mantle |
| How Scientists draw conclusions about the composition and other physical properties of the mantle? | in some places, mantle rock pushes to the surface; magma from the mantle flows out of active volcanoes on the ocean floor |
| What are the physical layers of the Earth? | the lithosphere, asthenosphere, mesosphere, outer core, and inner core |
| Which layer is characterized by the following? radius of 3430Km; temperature of 3700-7000celcius; makes up roughly one-third of the Earth’s mass; extends below the mantle to the center of the Earth | the core |
| Based on physical property, what is the outer most rigid layer of the earth? | Lithosphere |
| What is the five physical layers of the Earth's classification based up on? | physical properties |
| The lithosphere is made of two parts-the _______ and the rigid upper part of the ______. | crust, mantle |
| What are the pieces of the lithosphere that move around on top of the asthenosphere? | tectonic plates |
| Which physical layer is the plastic layer of the mantle on which pieces of the lithosphere moves? | asthenosphere |
| The __________ is made up of solid rocks that flows quickly. | asthenosphere |
| Which physical layer is beneath the asthenosphere that is strong lower part of the mantle? | mesosphere |
| What are the two parts of the earth's core? | the outer and the inner |
| Which core is the liquid layer of the earth's core beneath the mantle? | the outer core |
| What is the solid, dense center of our planet | the inner core |
| What is radiation? | the transfer of energy as electromagnetic waves. |
| What is thermal conduction? | the transfer of thermal energy through a material. |
| What is convection? | the transfer of thermal energy by the circulation or movement of a liquid or gas. |
| The cycle of warm air rising and cool air sinking causes a circular movement of air, called a______________. | convection current |
| The Earth receives energy from the sun by ____________. | radiation |
| Energy from the sun is absorbed by the atmosphere, land, and water and is changed into __________________. | thermal energy |
| Thermal energy is always transferred from ________________areas | warm to cold |
| Most thermal energy in the atmosphere is transferred by _____________. | convection |
| which of the earth's interior layer are not solid? | outer core |
| Where do convection current occure? | inside the mantle |
| What causes convection current? | the rising and cooling of the asthenosphere when it is heated by the inner core |
| What occurs as a result of convection currents? | The convection currents in the mantle move tectonic plates |
| Why do scientists rely on indirect methods to observe earth's interior? | the crust is too thick to drill |
| What method do scientists use to study the interior of Earth? | study of seismic waves caused by earthquake |
| What is the composition of earth's core? | iron and a small amount of nickel |
| How can we compare Earth's outer core and inner core? | outer core is liquid and inner core is solid |
| What causes the Lithosphere plates to move? | convection currents |
| What is the heat sources that creates convection currents inside the mantle? | inner core |
| What happens the pressure and temperature, moving from the mantle to the core? | increase |
| What makes up the continental crust? | granite |
| What makes up the oceanic crust? | basalt |
| How is heat transferred in convection? | from hot liquid and gas to cold substances. example: when a liquid boils a steam rises to up ward to the atmosphere |
| How is heat transferred in conduction? | from direct contact of hot solid materials with cold one. Example: a hand grip of a hot coffee pot |
| How is heat transferred in radiation? | by electromagnetic waves. Example: heat from sun |
| What comparison can be made about Earth's lithosphere and asthenosphere? | Lithosphere is the outer most rigid layer with two parts crust and upper part of the mantle. Asthenosphere is plastic layer of the mantle on which tectonic plates move. |
| Which layer of the Earth's interior is the thickest? the thinnest? | mantle, crust |
| Why is Earth's inner core solid? | the pressure inside the rock is immense |
| What is the asthenosphere made of? | solid rock |
| In what do different tectonic plates differ each other? | size, some are only oceanic like Cocos plate and others like South America plate are both continental and oceanic. |
| What is seismic wave? | earthquake waves that travel out from the focus of an earthquake in all directions. |
| What is surface wave? | seismic waves that can only move through solids. |
| How do Seismologists have learned that the Earth is made of different layers? | By measuring changes in the speed of seismic waves that travel through Earth’s interior |
| What are some properties of seismic waves? | Seismic waves travel at different speeds through the Earth, seismic wave traveling through a solid will go faster than a seismic wave traveling through a liquid. |
| What is part of the Earth that is molten? | Outer core |
| What is the part of the Earth on which the tectonic plates move? | asthenosphere |
Created by:
mystudystuck
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