Howcast - Learn what an ulcer is from gastroenterologist Lisa Ganjhu, M.D. in this Howcast video about stomach problems and digestive disorders.

Los glaciares son fuerzas destructivas que se desplazan lentamente y transforman los paisajes a su paso.
r/>
Twig - Ciencias de la Tierra - Geología - La meteorización y l
a
erosión

C
laves de...

Un estudio en detalle de los tres procesos clave que moldean nuestras costas. ¿Cuáles son y qué efectos tienen?
r/>
Twig - Ciencias de la Tierra - Geología - Los procesos
c
osteros

C
laves de...

El paisaje de este parque nacional se debe a la acción del hielo, que ha esculpido los valles, las cascadas y los escarpados acantilados que atraen a turistas de todo el mundo.
r/>
Twig - Ciencias de la Tierra -...

A closer look at the three key processes that shape our coasts. What are they and what effects do they have? Earth Science - Geology - Learning Points. Our coastlines are constantly being re-shaped by three key processes. Erosion -...

The landscape of this national park was shaped by ice - carving the valleys, waterfalls and sheer cliffs that attract tourists from all over the world. Earth Science - Geology - Learning Points. Glacial ice has reshaped the landscape of...

Waterfalls and gorges are closely linked as erosional features. Explore how each are formed and the different types of erosion at work. Earth Science - Geology - Learning Points. There are four forms of river erosion: attrition,...

Glaciers are a destructive force, moving slowly across landscapes, reshaping them as they go. Earth Science - Geology - Learning Points. Over three-quarters of Earth's fresh water is locked in frozen reservoirs, known as glaciers....

We learned about fluvial processes, or those dealing with water, so now let's learn about aeolian processes, or those dealing with wind. How does wind weather rocks? Quite similarly to water, but with less force. Let's check out some...

Now that we know some general information regarding sedimentary rocks, let's examine their mineralogy. What kinds of minerals can be found in sedimentary rocks? How do these minerals change over time? What can we say about weathering,...

Corneal Abrasion (“Scratched Eye”) | Causes, Signs & Symptoms, Diagnosis, Treatment



A corneal abrasion is a disruption (abrasion, scrape, or scratch) of the cornea, the transparent front layer of the eye. This can occur by a...

Now that we understand material selection, it's time to build something. But where would we build it? This video discusses the importance of selecting the right material and the various methods of manufacturing. It explores different...

Using footage of dust and sand storms, this program demonstrates that wind erosion moves small particles and is prevalent in dry areas where water does not hold surface particles together. Students will learn that once the particles are...

Upon viewing the Weathering and Erosion video series, students will be able to do the following: Describe weathering as a process that involves the breaking down of rocks and other materials on Earth's surface. Differentiate between the...

London, UK, March 11, 2010

1. Close up of vitamin tablet dissolving in
glass
2. Medium close of woman entering dentis
t's room
3....

1. Wide of the Kremlin and Saint Basil's Cathedral

2. Close of Saint Basil Cathedral's cup
olas
3. Wide of Saint Basil's Cathedral and the Saviour Tower of th
e Kremlin
4. Mid of Mother...

1. Wide of overturned bus

2. Debris on floor tilt up to w
heel
3. Pan along si
de of bus
4.
Seats crushed r/>5. Box with bloo
d
6. Debris an
d blood
7.
Overturned bus
8. Number...