Chapter 8 Review

Let’s get an “A” on the Test!

Chapter 8 Review

• What causes winds?

• What is humidity?

• Winds are caused by differences in air pressure.

• Humidity is a measure of the amount of water vapor in the air.

Chapter 8 Review

• There are four main types of fronts. What are they? Describe each.

• There are also four main parts to the water cycle. What are they? How do they create a cycle?

• Cold, warm, stationery, and occluded

• Evaporation, condensation, precipitation, and runoff.

Chapter 8 Review

• Name the five types of precipitation.

• What does the suffix nimbus mean?

• What does the word cumulus mean?

• What does the word cirrus mean?

• What does the word strato mean?

• Rain, snow, sleet, hail, and freezing rain

• Rain

• Heap or mass

• A curl of hair

• Spread out

Chapter 8 Review

• What is the name for the giant “thunderhead” type of cloud?

• What is the name for the clouds that form at or near the ground?

• What is needed to make a cloud? Condensation of water molecules and ______________

• Cumulonimbus

• Fog

• Tiny particles on which the molecules can condense.

Chapter 8 Review• The temperature at

which condensation begins is called the _____________

• Where do hurricanes typically form?

• Dew point

• They typically form over areas of warm ocean water.

Chapter 8 Review

• What causes tornadoes?

• Where do most tornadoes occur?

• Usually they are caused when a warm, humid air mass meets a cool, dry air mass.

• Tornado alley on the Great Plains of the Unites States

Chapter 8 Review

• What type of clouds are associated with tornadoes?

• What is lightning?

• Cumulonimbus

• Lightning is a sudden spark, or electric discharge between clouds or between clouds and the ground

Chapter 8 Review

• What is the name for a Scientist who studies the causes of weather?

• On a weather map there are often the letters L and H. What do they mean?

• What are the lines that connect areas of the same temperature called?

• A Meteorologist

• Areas of low and high pressure

• Isotherms

Chapter 8 Review

• What are the lines that connect areas of the same air pressure called?

• Very large tropical cyclones with high winds are called ____________

• The calm center of a hurricane is called the __________.

• Isobars

• Hurricanes

• Eye

Chapter 8 Review

• What should you do if you are caught in a snowstorm?

• Cover exposed parts of your body and try to stay dry. Only run the car engine if the exhaust pipe is clear of snow.

Chapter 8 Review

• What should you do if you are in the path of a tornado?

• Go into the basement or storm shelter. Stay away from windows and doors to avoid flying debris. If you are outdoors, lie flat in a ditch.

Chapter 8 Review

• How can you stay safe during a thunderstorm?

• Avoid places where lightning may strike such as under a tree. Also avoid objects that can conduct electricity, such as metal objects and bodies of water. If you are outdoors, stay low and avoid trees, fences and poles.

Chapter 8 Review

• How can you stay safe if you are caught in a hurricane?

• Listen to the warnings and evacuate the area when told to do so.