How Hurricanes Form

 

Summary of the Video

• Hurricane Formation and Season: Hurricanes, also known as tropical cyclones, form in the Northern Hemisphere near the equator, primarily off the coast of West Africa. The official hurricane season runs from June 1st to November 30th because ocean surface temperatures must reach at least 79°F, along with high-pressure systems and low wind shear, conditions frequently met during these months. • Hurricane Fuel and Mechanics: Hurricanes function like giant engines fueled by warm, moist air rising from warm ocean waters. This rising air creates a low-pressure system, drawing in surrounding high-pressure air, which then warms, moistens, and rises, forming clouds and wind. The Coriolis effect, due to Earth's rotation, causes the hurricane to spin counter-clockwise in the Northern Hemisphere. • Hurricane Strength and Peak Season: Hurricane strength is measured by wind speed and barometric pressure, with Category 5 hurricanes exceeding 157 mph. September typically sees the most hurricanes due to peak warm ocean surface temperatures during that month.

How Hurricanes Form Worksheet

How Hurricanes Form

How Hurricanes Form WS Key

Leave a Comment free science worksheets, how hurricanes form, hurricane worksheet, science worksheet

Find Volume Triangular Prism

 

Summary of the Video

• Identifying Parallel Parts in Triangular Prisms: To find the base area of a triangular prism, identify the parallel triangular faces. These faces form the basis for calculating the prism's volume. • Calculating the Base Area of a Triangle: The formula for the area of a triangle (1/2 base height) is used to determine the area of the triangular base. This calculation is a crucial step in finding the total volume. • Calculating the Volume of a Triangular Prism: The volume is found by multiplying the base area (calculated using the triangular area formula) by the height of the prism. In the example, this resulted in a volume of 96 cubic centimeters.

Leave a Comment geometry, volume, volume triangular prism

Weather Fronts - Summary and Worksheet

 

Summary of the Video

• Cold Fronts: Cold fronts, symbolized by blue triangles, occur when a cold air mass meets a warm air mass, forcing the warm air to rise rapidly. This can lead to thunderstorms and severe weather, followed by colder, drier conditions and clear skies. • Warm Fronts: Warm fronts, symbolized by red semicircles, form when a warm air mass slowly rises over a colder air mass. They typically bring cloudy weather and rain, although thunderstorms are possible with unstable air. Passing warm fronts result in warmer, more humid air. • Occluded and Stationary Fronts: Occluded fronts involve three air masses, with warm air trapped between two colder masses, often producing rain or snow, sometimes heavy or thunderstorm-like. Stationary fronts, where air masses of equal density meet and remain relatively unchanged, can bring prolonged periods of rain or snow, with the temperature and sky conditions varying depending on wind direction.

Free Worksheet Weather Fronts

Worksheet Weather Fronts

Weather Fronts WS Key

Leave a Comment free science worksheets, weather fronts, weather fronts worksheet

Global Winds - Summary and Worksheet

 

• Unequal Heating and Pressure Systems: The Earth's tilt causes uneven solar heating, creating high-pressure zones (colder, denser air) at the poles and 30° latitude, and low-pressure zones (warmer, less dense air) at the equator and 60° latitude. This pressure difference drives air movement. • Coriolis Effect and Prevailing Winds: The Earth's rotation (Coriolis effect) deflects wind patterns, creating three main prevailing wind belts: polar easterlies (60°–90° latitude), westerlies (30°–60° latitude), and trade winds (equator–30° latitude). These winds are named for the direction *fromwhich they originate. • Windless Zones: The doldrums (near the equator) and horse latitudes (around 30° latitude) experience minimal wind due to rising air (doldrums) and diverging high-pressure systems (horse latitudes). These zones historically posed challenges for sailors relying on wind for travel.

This worksheet goes along with the video.

Global Winds WS

Global Winds WS Key

Leave a Comment free science worksheets, global winds, global winds worksheet, science worksheets

Conduction- Convection-Radiation -SUMMARY and Worksheet

 

• Heat Transfer Mechanisms: Heat transfer, the movement of energy between objects of differing temperatures, occurs primarily through three methods: conduction, convection, and radiation. Conduction involves direct contact, as seen in cooking on a skillet; convection utilizes fluid movement (liquids or gases), exemplified by rising hot air; and radiation transmits heat without contact, as demonstrated by solar warming. • Conduction and Convection Examples: Conduction is highlighted by the direct transfer of heat from a hot pan to food items placed directly on it. Convection is illustrated through examples like a lava lamp, where heated liquid rises and cools, and the rising of heated air above a burning piece of paper, carrying heat away. • Radiation as a Heat Transfer Method: Radiation involves heat transfer without any physical contact between objects. This is shown by a thermometer increasing in temperature when placed near a lit lamp without direct contact and how reptiles like alligators use solar radiation to warm themselves.

FREE Conduction Convection Radiation Worksheet

Conduction Convection Radiation Worksheet

Conduction Convection Radiation WS KEY

Leave a Comment conduction worksheet, convection worksheet, free science worksheet

Layers of the Atmosphere - Summary and Worksheet

 

Summary of the Video

• Atmospheric Layers and Their Characteristics: The Earth's atmosphere is divided into four main layers: troposphere, stratosphere, mesosphere, and thermosphere. Each layer is characterized by distinct temperature changes with altitude, and contains different gases and atmospheric phenomena (e.g., the ozone layer in the stratosphere). • Temperature and Pressure Gradients: Temperature changes dramatically across the atmospheric layers. For example, the troposphere shows a temperature decrease with increasing altitude (lapse rate), while the stratosphere experiences a temperature increase due to ozone absorption of UV radiation. Atmospheric pressure decreases with increasing altitude. • Upper Atmospheric Layers and Their Functions: The thermosphere is the hottest layer, while the mesosphere is the coldest. Above the thermosphere are the ionosphere (responsible for the aurora borealis and radio wave reflection) and the exosphere, the outermost layer extending far into space.

FREE Layers of the Atmosphere Worksheet

Layers of the Atmosphere Worksheet

Layers of the Atmosphere WS KEY

Leave a Comment free science worksheet, geology worksheet, layers of the atmosphere worksheet, science

The Ocean Floor - Summary and Worksheet

 

Summary of the Video

• Ocean Floor Topography: The ocean floor comprises diverse landscapes, including the continental shelf (gentle slope extending from the shore), continental slope (steeper descent to the seafloor), and continental rise (sediment buildup at the slope's base). These lead to the abyssal plain, a vast, flat area covering nearly half the ocean floor. • Submarine Landforms: Besides the shelf, slope, and rise, significant features include seamounts (underwater volcanoes, sometimes forming islands like Hawaii), mid-ocean ridges (volcanic mountain ranges, e.g., the Mid-Atlantic Ridge), and ocean trenches (deep, V-shaped valleys, the deepest parts of the Earth). • Hydrothermal Activity: The ocean floor also features hydrothermal vents, which are hot springs formed when seawater interacts with newly formed ocean crust, becoming mineral-rich before boiling out.

FREE Ocean Floor Worksheet

Ocean Floor Worksheet

Ocean Floor Worksheet KEY

Leave a Comment free science worksheets, ocean floor, ocean floor worksheet, science worksheet