Weather Instruments and Fronts

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Questions and Answers

What does a thermometer measure?

  • Temperature in the air (correct)
  • Humidity levels
  • Air pressure
  • Precipitation levels

A rain gauge is used to measure the temperature in the air.

False (B)

What is formed when a cold air mass bumps up against a warm air mass?

Cold Front

A _____ measures the amount of precipitation.

<p>Rain Gauge</p> Signup and view all the answers

Match the type of front with its description:

<p>Cold Front = Strong storms with thunderstorms in warm weather and snowstorms in winter Warm Front = Warm air rises slowly, leading to gray clouds and rain Stationary Front = Occurs when two air masses meet and stop moving</p> Signup and view all the answers

What is the term for water changing from gas to liquid?

<p>Condensation (C)</p> Signup and view all the answers

The atmosphere consists of solid layers surrounding the Earth.

<p>False (B)</p> Signup and view all the answers

What does precipitation refer to?

<p>The falling of water droplets from clouds to Earth's surface.</p> Signup and view all the answers

When clouds become too full, the water droplets fall to Earth's surface as __________.

<p>precipitation</p> Signup and view all the answers

Match the following weather-related terms with their definitions:

<p>Evaporation = Water changing from liquid to gas Runoff = Precipitation flowing downhill on Earth's surface Humidity = Amount of water vapor in the air Air Pressure = Weight of air pressing down on Earth</p> Signup and view all the answers

What conditions are necessary for a hurricane to develop?

<p>Counter-clockwise winds, moisture, unstable air, and temperature differences (D)</p> Signup and view all the answers

A tornado watch indicates that a tornado has already been spotted.

<p>False (B)</p> Signup and view all the answers

What type of cloud is characterized by high altitude and thin, wispy appearance?

<p>cirrus</p> Signup and view all the answers

The four conditions necessary for severe storms include a lot of moisture, unstable air, large temperature differences, and the __________ energy.

<p>sun's</p> Signup and view all the answers

What does a tornado warning signify?

<p>A tornado has been spotted on the ground. (A)</p> Signup and view all the answers

Match the weather term with its description:

<p>High Pressure = Rainy weather Low Pressure = Fair weather Tornado Watch = Conditions are favorable for tornadoes Hurricane = Winds at least 74 miles per hour</p> Signup and view all the answers

What is the calm center of a hurricane called?

<p>the eye of the storm</p> Signup and view all the answers

Hurricanes are named using a mix of boy and girl names in alphabetical order.

<p>True (A)</p> Signup and view all the answers

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Study Notes

Weather Instruments

  • Thermometers measure air temperature.
  • Rain gauges collect and measure precipitation.
  • Air masses are large bodies of air with consistent temperature and humidity.

Fronts

  • Cold Front: Cold air mass colliding with a warm air mass can cause strong storms, thunderstorms, and snowstorms.
  • Warm Front: Warm air mass rising over cold air mass creates gray clouds and rain.
  • Stationary Front: Two air masses meet and remain stationary.

Weather Concepts

  • Weather: Atmospheric conditions at a specific time and place.
  • Atmosphere: Layers of air surrounding Earth.
  • Evaporation: Liquid water turning into gas.
  • Condensation: Water vapor turning into liquid.
  • Precipitation: Water falling from clouds as rain, snow, sleet, or hail.
  • Runoff: Precipitation flowing downhill on Earth's surface.
  • Weather Conditions: Temperature, wind, and air pressure.
  • Air Pressure: Weight of air pressing on Earth's surface.
  • Humidity: Amount of water vapor in the air.

Weather and Climate Study Guide

  • Key Concepts:
    • Define and describe weather and climate.
    • Identify high and low pressure, precipitation, fronts, and cloud types on maps.
    • Understand the water cycle.
    • Read and interpret climate graphs and weather forecasts.

Cloud Classification

  • Classified by height and shape.

Severe Storms

  • Conditions for severe storms:
    • High moisture content.
    • Unstable air.
    • Large temperature differences.
    • Solar energy.

Hurricane Development

  • 5 conditions for hurricane formation:
    • Counter-clockwise rotation of winds in the Northern Hemisphere.
    • Wind speeds exceeding 74 mph.
    • Hurricanes can be upgraded based on conditions meeting the requirements.
    • The eye of the storm is calm.

Hurricane Naming Convention

  • Hurricanes are named alphabetically using alternating boy and girl names.
  • Names of hurricanes causing significant damage are retired.

Tornado Watches and Warnings

  • Tornado Watch: Favorable conditions for tornado formation.
  • Tornado Warning: Tornado has been spotted on the ground.
  • A funnel cloud is not considered a tornado without ground contact.
  • Thunderstorms are often caused by collisions between cold and warm air.

Meteorologist Predictions

  • Predictions help people:
    • Choose appropriate clothing.
    • Plan their day.
    • Stay safe during storms.

Weather Symbol Descriptions

  • High: Fair weather
  • Low: Rainy

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