1. What do you know about WEATHER?
WEATHER Bellwork
What do you know about WEATHER?

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WEATHER Bell #1:
(1)What is weather? Write a definition in your own words! DO NOT USE A TEXTBOOK!
(2) How do you know that weather occurs close to the Earth's surface?
(3)What causes the temperature changes that are a part of what is called weather?
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WEATHER Bell #2:
(1)What is the most abundant gas in the Earth's atmosphere?
(2) What is the second most abundant gas in the Earth's atmosphere?
(3) Why is Nitrogen in Earth's atmosphere?
(4) Why is Oxygen in Earth's atmosphere?
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WEATHER Bell #3:
(1) List the four main layers of the atmosphere.
________________________ - ________________________
(2) List one characteristic for each of the main layers listed above.
(3) In which layer do you live?
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WEATHER Bell #4:
(1) What does hot air do? Why?
(2) What does cold air do?Why?
(3) What do the Convection Currents in our atmosphere DO? How do we experience the effects of this action of the  
      convection currents?
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WEATHER Bell #5:
(1) What is Weather? How can it affect you?
(2) How can you see what the day’s weather will be before you leave for school?
(3) What observations do Meteorologist make that help
them predict the weather?
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WEATHER Bell #6:
(1) List the three methods of heat transfer.
(2) What type of heat transfer is going on right now in the classroom? How do you know?
(3) Has the weather changed from yesterday? Explain.
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WEATHER Bell #7:
(1) What instrument is used to measure air pressure?
Wind speed and direction?
(2) What weather instruments are in this classroom?
(3) What instrument is used to measure/observe an entire continent’s weather?
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WEATHER Bell #8:
(1) What type of weather is associated with the arrival of a Cold Front?
(2) What type of weather is associated with the arrival of a Warm Front?
(3) What do a Warm Front and a Cold Front have in common?
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WEATHER Bell #9:
(1) What is Ozone?
(2) How can Ozone hurt us?
(3) How can Ozone help us?
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11. WEATHER Bell #10: B A B C
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answer to today’s bell.

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WEATHER Bell #11: A B C
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WEATHER Bell #12:
(1) List the four main layers of the atmosphere.
(2) What is air mostly composed of?
(3) List the three methods of heat transfer.
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WEATHER Bell #13:
(1) What is Weather?
(2) What does a Meteorologist do?
(3) What do you think is the most common summer cloud? Why do you think so?
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WEATHER Bell #14:
(1) From which direction does our weather come most of the time?
(2) If air pressure is dropping in your area, what kind of weather is coming?
(3) If air pressure is rising in your area, what kind of weather is coming?
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WEATHER Bell #15:
(1) What do you think is the most important thing to know about the layers of the atmosphere? Why?
(2) What do you think are two most important weather factors when it comes to weather reporting? Why?
(3) What do you think are the two most important weather prediction tops? Why?
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WEATHER Bell #1 Answer:
(1) Weather is the state of the atmosphere at a given time and place. (Yes! This IS from a textbook!)
(2) Because I live on the surface!
(3) How the sun heats different parts of our planet in different ways so some part are hot and some parts are cold.
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WEATHER Bell #2 Answer:
(1) Nitrogen
(2) Oxygen
(3) Nitrogen is used by living organisms to produce things like protein. Nitrogen plays an important role for life.
(4) Oxygen is essential for all living animal organisms on the planet. We need it to breathe!
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WEATHER Bell #3 Answer:
(1) & (2)
Thermosphere - where weather occurs
Stratosphere - where Ozone is present
Mesosphere - where meteorites burn up
Thermosphere - where unmanned spacecraft orbit                         
the Earth
(3) I live in the Troposphere.
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WEATHER Bell #4 Answer:
(1) Hot air rises because is is less dense than the air around    it.
(2) Cold air sinks because it is more dense than the air around it.
(3) The Convection Currents in our atmosphere circulate the heat from the sun around the planet Earth.
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WEATHER Bell #5 Answer:
(1) Weather is the state of the atmosphere at a given time and place. If it’s raining, I have to grab an umbrella. If it’s really hot outside, I wear shorts and sandals.
(2) Look out the window! Check the forecast on the radio or TV.
(3) Meteorologists observe temperature, air pressure, precipitation, wind speed and direction, etc.
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WEATHER Bell #6 Answer:
(1) Radiation, Conduction, and Convection.
(2) Radiation if your room is heated by radiators and it’s cold outside. Convection above your head as your body heat heats the air above you. ETC.
(3) This answer will change from school to school, state to state, season to season!
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WEATHER Bell #7 Answer:
(1) Air Pressure - Barometer; Wind Speed and Direction - Anemometer
(2) This answer will change from school to school, classroom to classroom!
(3) Weather Satellite.
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WEATHER Bell #8 Answer:
(1) Cold Fronts bring heavy rain in violent thunderstorms.
(2) Warm Fronts bring slow, steady rain.
(3) The are both attached to a
Low Pressure System.
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WEATHER Bell #9 Answer:
(1) Ozone is a form of oxygen with 3 Oxygen atoms.
(2) Ozone can hurt us because in the Troposphere it can cause damage to our lungs.
(3) Ozone can help us because in the Stratosphere it protects us from ultraviolet radiation from the Sun.
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WEATHER Bell #10 Answer:
Altostratus
Altostratus
Cirrocumulus
Cumulus
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WEATHER Bell #11 Answer:
Cumulonimbus
Cirrus
Nimbostratus
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WEATHER Bell #12 Answer:
(1) Troposphere, Stratosphere, Mesosphere, and Thermosphere.
(2) Nitrogen and Oxygen.
(3) Radiation, Convection, and Conduction.
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WEATHER Bell #13 Answer:
(1) Weather is the state of the atmosphere at a given time and place.
(2) A Meteorologist studies the weather and predicts the future weather of an area.
(3) Rising pressure brings the possibility of sunny weather.
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WEATHER Bell #14 Answer:
(1) Weather in the United States comes mainly from the west.
(2) Dropping pressure brings the possibility of rainy weather.
(3) Rising pressure brings the possibility of sunny weather.
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WEATHER Bell #15 Answer:
(1) A good answer would be the Troposphere because that’s where you live. There are other good answers, too!
(2) A good answer would be Temperature and Precipitation. There are other good answers, too!
(3) A good answer would be Low and High Pressure Systems and Weather Fronts. There are other good answers, too!
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