Weather

What are convection currents?

• The movement of fluid caused by differences in temperature and density, where warmer fluid rises and cooler fluid sinks.

• A type of current that only occurs in liquids, not gases.

• The process of heat transfer through direct contact between materials.

• A phenomenon that only happens in the atmosphere, not in oceans.

How do thunderstorms form?

• Thunderstorms form when cold, dry air rises slowly, cools, and condenses into clouds.

• Thunderstorms form when warm, moist air rises rapidly, cools, and condenses into clouds, releasing energy in the form of lightning and thunder.

• Thunderstorms form when warm air meets cold air at high altitudes, creating a stable atmosphere.

• Thunderstorms form when humidity levels drop significantly, causing clouds to dissipate.

What is the primary source of heat for the Earth's atmosphere?

• The moon

• Volcanic activity

• The sun

• Ocean currents

What is the significance of the jet stream in weather patterns?

• It is a slow-moving air current that has little effect on weather.

• It is a fast-flowing air current that influences weather patterns and can steer storms.

• It is a type of precipitation that occurs during storms.

• It is a weather phenomenon that only occurs in tropical regions.

What are hurricanes?

• Hurricanes are powerful tropical storms characterized by extreme low pressure, strong winds, and heavy rain.

• Hurricanes are mild weather patterns that bring light rain and gentle breezes.

• Hurricanes are cold fronts that occur in polar regions.

• Hurricanes are small, localized storms that do not affect large areas.

What is a stationary front?

• A boundary between two air masses that are not moving, often leading to prolonged periods of cloudy and rainy weather.

• A type of front that moves quickly and brings clear skies.

• A weather phenomenon that occurs only in winter months.

• A boundary where warm air rises over cold air, causing thunderstorms.

What happens to air pressure during a hurricane?

• Air pressure increases significantly in the center of a hurricane, creating a high-pressure system.

• Air pressure remains constant throughout the hurricane.

• Air pressure decreases significantly in the center of a hurricane, creating a low-pressure system.

• Air pressure fluctuates randomly during a hurricane.

What is the difference between high pressure and low pressure systems?

• High pressure systems are associated with clouds and precipitation, while low pressure systems are linked to clear skies and fair weather.

• High pressure systems are associated with clear skies and fair weather, while low pressure systems are linked to clouds and precipitation.

• High pressure systems occur only in winter, while low pressure systems occur only in summer.

• High pressure systems are always warmer than low pressure systems.

What type of weather is associated with warm fronts?

• Sudden thunderstorms

• Prolonged rain

• Heavy snowfall

• Clear skies

What is the water cycle?

• The process of photosynthesis in plants.

• The continuous process of evaporation, condensation, and precipitation that circulates water in the environment.

• The movement of tectonic plates beneath the Earth's surface.

• The cycle of carbon dioxide and oxygen in the atmosphere.