Chap 15, lesson 2:


1. The Sun provides most of Earth’s energy.


2. Some of the energy is absorbed by land and water on the Earth’s surface.


3. Energy from the Sun reaches Earth in the form of radiant energy or radiation.  


4. Radiation is energy that is transferred in the form of rays or waves.  


5. Conduction is the transfer of energy that happens when molecules bump into each other.


6. Radiation from the Sun heated the sand.  When air moves over warm land or water, the air gets heated by direct contact.


7. Convection is the transfer of heat by the flow of material.


8. Convection moves heat throughout the atmosphere.


9. Hydrosphere is a word that describes all the water on the Earth.


10. Energy from the Sun causes water from the oceans to change from a liquid to a gas by a process called evaporation.


11. Condensation is the process that happens when water vapor cools and changes back into a liquid.


12. Clouds form from condensation.  Clouds are made up of tiny droplets of water.


13. As the water drops grow, they fall to Earth as precipitation, as rain, sleet, snow, or hail.


14. The atmosphere on Mars is too thin to hold much of the Sun’s heat.  It is too cold for life.


15. Venus is too hot because the dense atmosphere traps far too much heat for life.


16. Earth’s atmosphere holds just the right amount of the Sun’s energy.

Unequal Heating Youtube

Heating Atmosphere Nearpod

 

Chap 15/3

Air Pressure and Wind Youtube


1. The Sun heats Earth unevenly so some areas are warmer than others.


2. Wind is the movement of air from an area of higher pressure to an area of lower pressure.


3. Different areas of the Earth receive different amounts of radiation because Earth’s surface is curved.  More radiation equals more heat.


4. Air at the equator is warm so it is less dense.  Warm air rises.


5. Cooler, denser air sinks while warmer, less dense air rises.  The cold, dense air comes from the poles.


6. THINK!!! Warm air rises and cold air sinks which causes wind!


7. The rotation of Earth causes the Coriolis effect. the coriolis effect causes moving air and water to turn to the right in the northern hemisphere.


8. The flow of air caused by the Coriolis effect and by the difference in the amount of solar radiation received on Earth’s surfaces creates wind patterns.


9. Wind patterns influence the weather.


10. Early sailors used wind patterns to help them navigate the oceans.


11. Winds that blow near Earth’s surface are called prevailing winds.


12. There are three main prevailing winds that move heat and moisture around Earth, the Trade Winds, Prevailing Westerlies, and the Polar Easterlies.


13.Trade winds were popular with early sailors because they moved their ships.


14. Prevailing Westerlies cause much of the movement of weather across North America.


15. Polar Easterlies are found near the poles.


16. Jet Streams are narrow bands of strong winds that blow near the top of the troposphere.  The Jet streams separate cold air to the north from warm air to the south. The Jet stream bring us our super cold winter weather.


17. Winds are usually named for where they come FROM!!!


18. A sea breeze is the movement of air from sea to land during the day.  Hot over the land rises and cooler air comes in from the sea to replace it.


19. At night the air over the ocean is warmer and rises so cooler air over the land goes out to replace it causing a land breeze.


 

Sea breeze-air over land is warmer so it rises and cooler, denser air over the sea slides in to take its place.  This is why it is usually so windy at the beach.


Land breezes happen at night.  The ocean is warmer than the land.  Warm air over the ocean is less dense, so it rises and the colder, denser air over the land slides out to sea.


Sea breeze-air over land is warmer so it rises and cooler, denser air over the sea slides in to take its place.  This is why it is usually so windy at the beach.


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Land breezes happen at night.  The ocean is warmer than the land.  Warm air over the ocean is less dense, so it rises and the colder, denser air over the land slides out to sea.

Winds and Air Pressure

Chap 15/3 nrpd