Global Distribution of Water - Worksheet and Summary

 

Summary

• Global Water Distribution Overview Earth's surface is 71% water. This water is distributed across various reservoirs, including oceans, ice caps, groundwater, soil moisture, lakes, atmospheric moisture, swamps, rivers, and biological water. • Major Water Reservoirs Oceans hold the largest percentage of Earth's water at 96.5%. Ice caps, glaciers, and permanent snow contain 1.74%. Groundwater accounts for 1.69%, with varying salinity levels. • Minor Water Components Soil moisture, ground ice, lakes (both fresh and saline), atmospheric moisture, swamps, rivers, and biological water constitute smaller proportions of the global water distribution.

Global Distribution Water Worksheet

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Which Fraction is Larger? Fraction Worksheet

 

• Comparing Fractions Fractions can be compared by finding a common denominator to make comparison easier.

• Finding a Common Denominator To compare fractions, rename them using a common denominator, which involves multiplying the numerator and denominator of each fraction. • Comparing Numerators After renaming fractions with a common denominator, compare the numerators; the fraction with the larger numerator is the larger fraction.

Free Worksheet that goes with the Video

Which Fraction is Larger Worksheet

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How Hurricanes Form - Worksheet and Summary

 

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

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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.

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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

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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.

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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

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