Earth layers
Weather
Vocabulary
Oceans
100
This solid layer is where we live and forms Earth's surface. What is it?
Crust
100
Define "air mass" and give one example of how an air mass can change local weather
An air mass is a large body of air many miles wide with specific temperatures and humidity. Air masses impact weather by allowing fronts to move through which changes temperatures
100
Define Coriolis effect
Force that deflects air and water due to Earths rotation, different for North and South hemispheres
100
What do we call large movements of ocean water at or near the surface that are driven mainly by wind?
Hurricanes, typhoon, cyclone
200
Which two layers together make up the rigid lithosphere?
Crust and upper mantle
200
What weather is typical with a cold front
Thunderstorms, drop in temperatures, severe wind
200
what is a convection current
Heat transfer in liquids and atmosphere where warmer less dense material rises and cooler denser material sinks.
200
How do oceans influence weather and climate?
Oceans absorb energy, store it and release it
300
The layer that is solid and made largely of iron and nickel. What is it called?
Inner core
300
What causes all weather on Earth?
Sunlight
300
What is the jet stream
Fast, narrow lobal air current band in the high atmosphere
300
What factors are necessary for a hurricane (3)
warm water(evaporation). Low pressure system, low winds
400
Draw a model of the Earth and label the FOUR main layers.
Crust mantle outer core inner core
400
Why are there convection currents in the atmosphere
The Sun heats the Earth surface causing the heat to rise into the atmosphere and the cooler denser air will sink
400
Describe a land breeze
Heat from the land due to the sun rises and circulates to the cooler ocean in a convection current style
400
What is the difference between a typhoon, hurricane, and cyclone
They are all storms that form over warm ocean waters but at called different names depending on the part of the world the originate im
500
Define aesthenosphere
Upper layer of the mantle
500
Draw all 4 weather fronts symbols and label them
500
Describe the differences between low and high pressure
Low - cloudy, warmer, storms common, air rises, counterclockwise, Capital L symbol
High - clear skies, fair sunny weather, sinking air, clockwise, capital H symbol
500
What would cause a hurricane to decrease in strength?
cooler waters, land, change in pressure,