Chapter 2 – Weather Patterns Guided Notes Objective(s): 7.E.1.4 Predict weather conditions and patterns based on information obtained from: • Weather data collected from direct observations and measurement (wind speed and direction, air temperature, humidity and air pressure) • Weather maps, satellites and radar • Cloud shapes and types and associated elevation 7.E.1.5 Explain the influence of convection, global winds and the jet stream on weather and climatic conditions.
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Chapter 2 – Weather Patterns
Guided Notes
Objective(s): 7.E.1.4
Predict weather conditions and patterns based on information obtained from:
• Weather data collected from direct observations and measurement (wind speed and direction, air temperature, humidity and air pressure) • Weather maps, satellites and radar • Cloud shapes and types and associated elevation
7.E.1.5 Explain the influence of convection, global winds
and the jet stream on weather and climatic conditions.
• Learner Objective(s): Students will understand that the water cycle and atmospheric conditions are interconnected and create the weather we see on Earth.
Concept/Vocabulary Word Definition
• Deposition - The process of water vapor changing from a gas directly into a solid.
• Dew Point - The temperature at which water vapor will start to condense out of the air as liquid water.
• Evaporation - The process of a liquid changing into a gas
• Fog - Clouds that form at the surface of the Earth.
• Ground Water - Water that has infiltrated (sunk) into the ground.
• Hydrosphere - All of the Earth's water that is cycling within the water cycle.
• Meteorologist - A scientist who studies the atmosphere, weather and climate
• Precipitation - Any type of liquid or solid water that falls to Earth's surface.
• Run Off - Water that flows across the surface of the Earth.
• Sublimation - The process of water changing from a solid directly into a gas.
• Transpiration - The process of water evaporating from the leaves of plants during photosynthesis.
• Water Cycle - The repeating processes that move water in different forms between Earth's surface and the atmosphere
• Water vapor - Water in the atmosphere that is in the form of a gas.
• Weather - The condition of Earth's atmosphere at a particular time and place
• Weather patterns - Weather that repeats itself in a predictable way.
I. SECTION 2.1 – The atmosphere’s air pressure changes A. Air exerts pressure
• Exploring air pressure – What does air do to the egg?
• Investigate: How does Earth’s rotation affect wind?
C. Bands of calm air separate global wind belts
• Calm regions – doldrums and horse latitudes
– Doldrums – are a low-pressure zone near the equator
– Horse latitudes – are high-pressure zones located about 30 degrees north and 30 degrees south of the equator
• Wind belts – trade winds, westerlies, and easterlies
– Trade winds – blow from east, moving from the horse latitudes toward the equator
– Westerlies – blow from the west, moving from the horse latitudes toward the equator. They bring storms across much of the United States
– Easterlies – blow from the east, moving from the polar regions toward the mid-latitudes. Stormy weather often occurs when the cold air of the easterlies meet the warmer air of the westerlies