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Understanding High and Low-Pressure Systems and Their Impact on Weather

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alka
9 diapositives · 233 Views · Jul 26, 2014

In today's learning goal (7.E.1.3), we will explore how high and low-pressure systems influence our weather. Be prepared to submit any missing assignments. For tonight's task, complete flashcards and questions using Intellicast.com. Answer questions about the front moving into NC and its weather effects. Observe the differences in air movement for high and low pressure, and learn about isobars and their role in forecasting. Ensure you finish your science notebook assignments for a comprehensive understanding.

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  1. 10/7/1330th Day of School Learning Goal (7.E.1.3): I will be able to explain how the difference in high- and low-pressure systems affect our weather. Due Today: Any missing assignments. Evening Assignment: Finish flashcards and questions.

  2. Use Intellicast.com to answer the following: • What type of front is moving into NC? • How will this front affect our weather? • What is our air pressure over NC (see little number on map) Do Now

  3. McDougall, p.A84 High- and Low-Pressure Systems In your notebook, write what you observe about the differences between H (high pressure) and L (low pressure) based on the two images below:

  4. High pressure system Air moves down, out, and clockwise Low pressure system Air moves in, up, and counterclockwise http://www.bom.gov.au/lam/Students_Teachers/pressure.shtml High- and Low-Pressure Systems

  5. McDougall, p.A101 Isobars Isobars are lines that connect areas with the same air pressure. They are used to identify areas of high and low pressure. They also help forecast wind speed and direction. Below air pressure is measured in millibars (mBars).

  6. Systems air flow in the Southern Hemisphere High- and Low-Pressure Systems

  7. On the back side of the index card write in your own words the following information about each one: Description: How it forms: Direction of air flow: Weather: McDougall, p.A84 High- and Low-Pressure Systems On the front of three cards write the following terms in big, bold letters: High-Pressure System Low-Pressure System Isobars (just define & describe how they can affect wind)

  8. In your science notebook write the questions and answer #4, 5, & 6 page A85. Knowledge Check

  9. 1)Finish flashcards for: • High-Pressure System • Low-Pressure System • Isobar • 2)Complete questions #4, 5 & 6 page A85. Evening Assignment