Quarter 4 Week 5 Science 5 Supplementary Slides

  • Slide 1: Weather Disturbances: Winds, Storms, and Air Pressure

    • This is the title slide for Fredoka Grade 5, Quarter 4, Week 5 Supplementary Slides, presented by the Grade 5 Matatag Activity Hub.

  • Slide 2: The Mystery of “Walang Pasok”

    • This slide explains that classes are suspended not just because of rain, but due to weather disturbances.

  • Slide 3: It Starts with Air Pressure

    • Defines Air Pressure as the weight of atmospheric gases pressing down. It can be High Pressure (pressing down hard) or Low Pressure (pressing lightly).

  • Slide 4: Why Does the Wind Blow?

    • Explains that wind is air in motion. The "Golden Rule" is that air always moves from High Pressure areas to Low Pressure areas, similar to people moving from a crowded room to an empty space.

  • Slide 5: The Role of Temperature

    • Describes how heat changes air movement: Warm air becomes lighter and rises, while cold air is heavier and sinks to replace it. This constant movement creates wind.

  • Slide 6: What is a Low Pressure Area (LPA)?

    • An LPA is created when warm air rises over the ocean, leaving less air pressure underneath. Winds from surrounding areas rush toward the LPA to create balance.

  • Slide 7: Cooking Up a Tropical Cyclone

    • The "recipe" for a cyclone includes warm water, rising air, and lots of water vapor. As the air rises and spins, it becomes a "giant engine" of wind and rain.

  • Slide 8: From Breeze to Monster Storm

    • Classifies storms as they gain strength:
      • Tropical Depression: The weakest form.
      • Tropical Storm: Gaining strength.
      • Typhoon: Very strong winds.
      • Super Typhoon: The strongest and most dangerous.

  • Slide 9: Why the Philippines?

    • The Philippines is located near the warm waters of the Pacific Ocean, making it a perfect place for storms to form. Approximately 20 tropical cyclones enter the Philippine Area of Responsibility annually.

  • Slide 10: Effect #1: Strong Winds

    • Storm winds can range from 62 kph to over 185 kph. They can uproot trees, destroy crops, and damage homes made of light materials.

  • Slide 11: Effect #2: Flooding

    • Heavy rainfall causes rivers and drainage systems to overflow, damaging property, making roads impassable, and drowning crops.

  • Slide 12: Effect #3: Landslides

    • Heavy rain softens mountain soil until it slides down, blocking roads and potentially burying houses at the foot of the mountain.

  • Slide 13: Effect #4: Storm Surge

    • Strong winds can push ocean water onto land as a wall of water up to 5 meters high, destroying coastal infrastructure.

  • Slide 14: Effect #5: Health Risks

    • Disease can spread after a storm, including Dengue (from mosquitoes), Leptospirosis (from contaminated floodwater), and Gastroenteritis (from polluted drinking water).

  • Slide 15: Stay Safe, Grade 5!

    • The closing slide emphasizes that "Knowledge is your best umbrella" and encourages viewers to stay safe and keep learning.






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