Podcast
Questions and Answers
What are the three stages of thunderstorm formation?
What are the three stages of thunderstorm formation?
Lightning can only occur between a cloud and the ground.
Lightning can only occur between a cloud and the ground.
False (B)
What causes thunder?
What causes thunder?
The rapid expansion and explosion of air heated by a lightning strike.
Tropical cyclones form over warm waters when there is high humidity and sea temperatures above ______ ํC.
Tropical cyclones form over warm waters when there is high humidity and sea temperatures above ______ ํC.
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Match the following parts of a tropical cyclone with their descriptions:
Match the following parts of a tropical cyclone with their descriptions:
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In which hemisphere do tropical cyclones spin clockwise?
In which hemisphere do tropical cyclones spin clockwise?
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Tropical cyclones are known for causing heavy rain and strong winds.
Tropical cyclones are known for causing heavy rain and strong winds.
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What is the name of the rotating storm that causes heavy rain and strong winds in tropical areas?
What is the name of the rotating storm that causes heavy rain and strong winds in tropical areas?
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What wind speed defines a typhoon or hurricane?
What wind speed defines a typhoon or hurricane?
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The greenhouse effect prevents heat from escaping into space.
The greenhouse effect prevents heat from escaping into space.
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What is the role of weather forecasting in agriculture?
What is the role of weather forecasting in agriculture?
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The tropical storm has a wind speed reaching ______ knots.
The tropical storm has a wind speed reaching ______ knots.
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Match the weather elements with their corresponding measuring instruments:
Match the weather elements with their corresponding measuring instruments:
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Which of the following symbols represents a high-pressure area on a weather map?
Which of the following symbols represents a high-pressure area on a weather map?
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Cloud cover is not measured when creating weather forecasts.
Cloud cover is not measured when creating weather forecasts.
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What happens to global temperatures as more greenhouse gases are added to the atmosphere?
What happens to global temperatures as more greenhouse gases are added to the atmosphere?
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What is the biggest cause of global warming?
What is the biggest cause of global warming?
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Chlorofluorocarbons (CFCs) are used primarily as a fuel source.
Chlorofluorocarbons (CFCs) are used primarily as a fuel source.
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What is released by the burning of fossil fuels and contributes to ozone formation?
What is released by the burning of fossil fuels and contributes to ozone formation?
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The region known as the ______ is a result of ozone depletion.
The region known as the ______ is a result of ozone depletion.
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Which gas is a greenhouse gas that also contributes to ozone destruction?
Which gas is a greenhouse gas that also contributes to ozone destruction?
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UV radiation increases in areas with a depleted ozone layer.
UV radiation increases in areas with a depleted ozone layer.
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What atoms are freed when CFCs break down in the presence of UV radiation?
What atoms are freed when CFCs break down in the presence of UV radiation?
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Match the greenhouse gases with their sources:
Match the greenhouse gases with their sources:
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Flashcards
Thunderstorm
Thunderstorm
A weather phenomenon with heavy rain, lightning, and thunder.
Cumulus Stage
Cumulus Stage
The initial stage of thunderstorm formation with growing cumulus clouds.
Mature Stage
Mature Stage
The stage of a thunderstorm characterized by heavy rain and thunderstorms.
Dissipating Stage
Dissipating Stage
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Lightning
Lightning
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Tropical Cyclone
Tropical Cyclone
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Eyewall
Eyewall
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Rainbands
Rainbands
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Carbon Dioxide (CO2)
Carbon Dioxide (CO2)
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Methane (CH4)
Methane (CH4)
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Ozone (O3)
Ozone (O3)
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Greenhouse Gases
Greenhouse Gases
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Ozone Hole
Ozone Hole
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Chlorofluorocarbons (CFCs)
Chlorofluorocarbons (CFCs)
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UV Radiation
UV Radiation
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Sources of Greenhouse Gases
Sources of Greenhouse Gases
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Typhoon/Hurricane
Typhoon/Hurricane
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Tropical Storm
Tropical Storm
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Tropical Depression
Tropical Depression
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Weather Map
Weather Map
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Isobars
Isobars
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Greenhouse Effect
Greenhouse Effect
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Natural Disaster Warning
Natural Disaster Warning
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Weather Forecasting
Weather Forecasting
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Study Notes
Mastering Science 1B
- This is a secondary 1 science learning area with three learning units.
- Unit 6 is Atmosphere (Part 2).
Atmosphere (Part 2)
- This section covers weather variability, weather forecasting, and changes in global climate.
Weather Variability
- Includes thunderstorms and tropical cyclones.
Thunderstorms
- A weather phenomenon with heavy rain, lightning, thunder, sometimes strong winds, and hail.
- Forms when moisture and rising unstable air are present.
- Consists of three stages: cumulus, mature, and dissipating.
- During a thunderstorm, positive and negative charges build up in clouds, creating lightning.
- Lightning occurs within a cloud, between two clouds, or between a cloud and the ground.
- Lightning heats the air, causing it to expand explosively, producing thunder.
Tropical Cyclones
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Strong rotating storms in tropical areas.
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Form over warm waters with high humidity and sea temperatures above 26°C.
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Stages in their formation include warm moist air rising, cool air replacing warm air, and rotation creating large clouds.
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The eye is the calm center, while the eyewall is the ring of clouds with the strongest winds and heaviest rain.
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Rainbands are outermost clouds producing strong winds and rain bursts.
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Tropical cyclones spin counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.
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Classified as typhoons/hurricanes, tropical storms, or tropical depressions, based on wind speed.
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Typhoons/hurricanes have wind speeds of 65 knots (118 km/h) or higher.
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Tropical storms have wind speeds between 34-64 knots (63-117 km/h).
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Tropical depressions have wind speeds of 34 knots (63 km/h) or less.
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Tropical cyclones are named based on their formation location (e.g., hurricanes in the North Atlantic, typhoons in the western Pacific).
Weather Forecasting
- Uses gathered weather data.
- Weather maps show atmospheric conditions (wind speed, wind direction, cloud cover, atmospheric pressure, air temperature).
- Forecasting includes descriptions of weather conditions like air temperature, rain, sky conditions, visibility, and wind.
Changes in Global Climate
- Includes the Greenhouse Effect, the Ozone Hole, and the Effects of Global Warming.
The Greenhouse Effect
- Greenhouse gases trap heat in the atmosphere, preventing it from escaping into space.
- This trapped heat keeps the Earth warm, leading to an increase in global temperatures if more greenhouse gases are present.
Sources of Greenhouse Gases
- Burning fossil fuels, biomass, and cement production release carbon dioxide.
- Wetlands, rice cultivation, cattle raising, and natural gas use release methane.
- Chemical factories, power plants, and fertilizers release nitrous oxide.
- Refrigerants and aerosols (CFCs) also contribute.
The Ozone Hole
- Some greenhouse gases destroy ozone in the atmosphere, creating a depleted ozone region (ozone hole).
- UV radiation breaks down CFCs, releasing chlorine atoms.
- Chlorine atoms break down ozone, reducing the layer's ability to block UV-B radiation.
Effects of Global Warming
- More common heavy precipitation and storms.
- More common droughts.
- Rising sea levels due to melting ice sheets.
- Spread of diseases due to warmer temperatures.
- Destruction of habitats endangering plants and animals.
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Description
Test your knowledge on the formation stages of thunderstorms and the characteristics of tropical cyclones. This quiz covers essential concepts related to storms, including lightning, thunder, and cyclone behavior in different hemispheres. Perfect for anyone studying meteorology or atmospheric sciences!