Earth Science

Killer Hurricanes | Hurricane Paths Over Time

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Learn how evidence of past tropical cyclones collected in an underground cave in Central America is being used to predict where future North Atlantic hurricanes will strike, in this video from NOVA: Killer Hurricanes. Amy Frappier is studying stalagmites, mineral deposits that form inside caves. She and her research team collected them in Belize. Stalagmite growth layers contain chemical traces of past hurricanes. Because hurricane rain contains lower levels of oxygen-18 (the heavier isotope) relative to oxygen-16 (“light” oxygen), a low ratio of oxygen-18 to oxygen-16 present in a stalagmite is evidence of a past hurricane. With data from caves across Central America and the Caribbean, Frappier’s analysis suggests a trend that she continues to explore: over a 450-year period, hurricanes have been moving northward from the equator toward the continental United States. This resource is part of the NOVA Collection.

Lightning, hurricanes, and blizzards

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Explains how storms form, where they strike, and what makes them so powerful. Includes full-color photographs, a glossary, and further reading sources.

Lightning, hurricanes, and blizzards

Explorando la topografia (2012)

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This video program takes a fascinating look at the many different features found on Earth. Familiar places are used to help describe key landforms. The importance and characteristics of various landforms are explored.

To find the English language version of this video, please click here.

Grade Level: 
Primary
Length: 
00:11
Explorando la topografia

Damnation (2014)

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Note: There are two versions of this program on the same DVD: 87-minute theatrical and 52-minute classroom.

Grade Level: 
Middle
High
Length: 
01:27
Damnation

El desgaste y la erosion (Weathering and Erosion) (2008)

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This program illustrates the everyday, real-life processes of weathering and erosion. Easy-to-understand examples of weathering help students differentiate between the processes of mechanical and chemical weathering. Vivid footage of processes such as freezing, thawing, condensation, and rusting help students grasp how weathering works.

Grade Level: 
Elementary
Length: 
00:16
El desgaste y la erosion (Weathering and Erosion)

Cambios en la Tierra (Changes on Earth) (2012)

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While it may not always seem possible, Earth is continually changing. This video provides insight into fascinating processes such as the formation of land, erosion, and volcanic eruptions. Other Earth processes are also investigated.

Find the English language version of this video at: Changes on Earth

Grade Level: 
Primary
Length: 
00:11
Cambios en la Tierra (Changes on Earth)

Que es el ciclo de agua? (What is the Water Cycle?) (2011)

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This beautiful program illustrates the key components of the water cycle that occurs everywhere around us. Concepts and terminology: condensation, evaporation, precipitation, cloud, rain, snow, sleet, and hail.

Find the English language version of this video at: What is the Water Cycle?

Grade Level: 
Primary
Length: 
00:12
Que es el ciclo de agua? (What is the Water Cycle?)

Observando el clima (Observing Weather) (2011)

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Live-action weather footage helps students learn how they can observe the weather. Concepts and terminology: temperature, air pressure, weather systems, precipitation, and wind.

Find the English language version of this video at: Observing Weather

Grade Level: 
Primary
Length: 
00:12
Observando el clima (Observing Weather)

Cosmos: A Spacetime Odyssey: Disc 4 (2013)

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From Carl Sagan’s collaborators on the original series, Ann Druyan and Steve Soter, comes this spectacular follow-up to one of the most beloved programs of all time. Hosted by renowned astrophysicist Dr.

Grade Level: 
High
Length: 
02:09
Cosmos: A Spacetime Odyssey: Disc 4

Cosmos: A Spacetime Odyssey: Disc 3 (2013)

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DVD icon

From Carl Sagan’s collaborators on the original series, Ann Druyan and Steve Soter, comes this spectacular follow-up to one of the most beloved programs of all time. Hosted by renowned astrophysicist Dr.

Grade Level: 
High
Length: 
02:09
Cosmos: A Spacetime Odyssey: Disc 3

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