SLMS 7SLMS 7thth Grade Science Grade ScienceWeather and ClimateWeather and Climate

Lessons 2 and 3Lessons 2 and 3

Collecting Weather DataCollecting Weather Data

Earth’s AtmosphereEarth’s Atmosphere

BRAINSTORMBRAINSTORMWhat does the term Weather What does the term Weather

mean?mean?• Weather properties include?Weather properties include?

1.1.2.2.3.3.4.4.5.5.6. 6. 7. 7. 8.8.

DESCRIBEDESCRIBE

• Today’s WeatherToday’s Weather

• Yesterday’s WeatherYesterday’s Weather

• The Day Before Yesterday?The Day Before Yesterday?

TODAY’S FORECASTTODAY’S FORECASTWOOD TVWOOD TV

• What terms did the meteorologist use What terms did the meteorologist use when reporting the weather?when reporting the weather?1.1.2.2.3.3.4.4.5.5.6.6.7.7.8.8.

WEATHER TERMSWEATHER TERMS• SystemSystem

• FrontFront

• High and Low PressureHigh and Low Pressure

• PrecipitationPrecipitation

• TemperatureTemperature

• CloudsClouds

• Wind Speed and DirectionWind Speed and Direction

• Wind Chill and/or “Feels Like” Wind Chill and/or “Feels Like” TemperatureTemperature

• Dew PointDew Point

• Barometer – Barometric PressureBarometer – Barometric Pressure

How can we find out about How can we find out about daily changes in the daily changes in the

weather?weather?• Record Daily Weather Data.Record Daily Weather Data.

WEATHER INSTRUMENTSWEATHER INSTRUMENTS• ThermometerThermometer• BarometerBarometer• HygrometerHygrometer• AnemometerAnemometer• Rain GageRain Gage• Weather VaneWeather Vane

Pass around the weather instruments and record the answers to the following questions on you

note cards.

What Does this instrument do?

What is this instrument used to measure?

How does it work?

Instrument Lab Follow Instrument Lab Follow UpUp

- What do each of these instruments do?- What do each of these instruments do?- What increments are used to measure?- What increments are used to measure?• ThermometerThermometer• BarometerBarometer• HygrometerHygrometer• AnemometerAnemometer• Rain GageRain Gage• Weather VaneWeather Vane

- Refer to the functions in the Key Terms section - Refer to the functions in the Key Terms section of your journal when you are done.of your journal when you are done.

-What makes up the What makes up the Atmosphere?Atmosphere?-What properties of the -What properties of the atmosphere do we measure? atmosphere do we measure?• Thermometer – TemperatureThermometer – Temperature

• Barometer – Air PressureBarometer – Air Pressure

• Hygrometer – The amount of water Hygrometer – The amount of water vapor in the air.vapor in the air.

Record daily weather Record daily weather conditions.conditions.

DAILY WEATHER OBSERVATION LOG

DAILY WEATHER OBSERVATION LOG

DATE WEATHER OBSERVER

TEMPERATURE(ºC)

PRECIPITA-TION (cm)

BAROMETRIC

PRESSURE

HUMIDITY WINDDIRECTION

WINDSPEED

CLOUDCOVER

COMMENTS

Atmosphere Make UpAtmosphere Make Up

Journal Entry – Wrap upJournal Entry – Wrap up

• How do you think daily weather data How do you think daily weather data will help determine how the weather will help determine how the weather changes from day to day and changes from day to day and sometimes within a day?sometimes within a day?

• DISCUSSDISCUSS and and RECORDRECORD in your in your journal.journal.

• Lesson 3Lesson 3

QuestionQuestion

What would happen What would happen if the percentage if the percentage of oxygen in the atmosphere were of oxygen in the atmosphere were

increased or decreased?increased or decreased?