Sediments are deposited, compacted, and cemented together to form sedimentary rock.
- Subject:
- Science
- Provider:
- Utah Education Network
- Author:
- Visual Learning Company
- Date Added:
- 02/28/2010
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Fossils often form along with sedimentary rocks because organisms can be quickly buried by sediments.
- Subject:
- Science
- Provider:
- Utah Education Network
- Author:
- Visual Learning Company
- Date Added:
- 02/28/2010
Mineral-rich water evaporates, leaving behind deposits of limestone, known as stalactites.
- Subject:
- Science
- Provider:
- Utah Education Network
- Author:
- Visual Learning Company
- Date Added:
- 02/28/2010
Chemoreceptors for smell, specifically referred to as "olfactory cells," are concentrated in mucus membranes lining the upper nasal cavity.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
Inside the inner ear is a coiled, fluid-filled structure called the "cochlea." It plays a key role in hearing.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
inside the cochlea are specialized hair cells that are sensitive to vibrations of sound waves. The hair cells transmit nerve impulses to the cochlear nerve that, in turn, transmits impulses to the brain, specifically, the cerebral cortex.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
The middle ear region, located further inside the head, contains a delicate structure called the "tympanic membrane," commonly referred to as the "eardrum." The eardrum vibrates when sound waves make contact with it.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
A small canal called the "Eustachian tube" leads from the middle ear to the throat. It helps equalize air pressure between the middle ear and the external environment.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
The eardrum vibrates when sound waves make contact with it. In turn, vibrations are transmitted to several tiny bones-- the hammer, anvil, and stirrup.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
Structures in the inner ear, called "semicircular canals," contain fluid which help the body maintain balance. When the head changes position, receptors in the canals detect a change in the direction of the fluid.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
The sounds we hear actually consist of disturbances in the air called "sound waves."
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
The spinal cord consists of a long bundle of neurons running the length of the back.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
In a first class lever, the fulcrum is located between the effort force and the resistance force.
- Subject:
- Science
- Provider:
- Utah Education Network
- Author:
- Visual Learning Company
- Date Added:
- 02/28/2010
In a second class lever, the resistance force is located between the effort force and the fulcrum.
- Subject:
- Science
- Provider:
- Utah Education Network
- Author:
- Visual Learning Company
- Date Added:
- 02/28/2010
In a third class lever, the effort force is located between the resistance force and the fulcrum.
- Subject:
- Science
- Provider:
- Utah Education Network
- Author:
- Visual Learning Company
- Date Added:
- 02/28/2010
Compact bone is very dense and provides support. It is found in the shafts of long bones such as in the legs and arms.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
You're probably familiar with some of the major bones, such as the femur, tibia, ulna, radius, humerus, and ribs.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
Red marrow found in long bones, breastbone, cranium, and vertebrae is responsible for producing red blood cells, platelets, and some types of white blood cells. Yellow marrow consists of fat cells, and is found in the hollow centers of long bones.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
Because a muscle exerts force only when it contracts, it moves a bone in just one direction. Therefore muscles often work in pairs, with muscles moving in opposite directions.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011
Skeletal muscle is made up of muscle fibers.
- Subject:
- Science
- Provider:
- Utah Education Network
- Provider Set:
- Animations and Images 2011 Collection
- Author:
- Visual Learning Company
- Date Added:
- 08/18/2011