Anderer Ressourcentyp

Siemens Stiftung

Amino acids and proteins in the human body (link list)

Link list:
Further information on the experiment "Amino acids and proteins in the human body - We verify their presence".

The links can be used for preparing or for further study of the experiment.

Anderer Ressourcentyp

Siemens Stiftung

A4 Evaporation heat (teacher instructions)

Experimentation instructions for Experimento | 10+:
Background information on the content and practical information on conducting the experiment "Evaporation heat - How to cool with heat". This experiment comprises two subexperiments.


The materials supplied allow eight groups of students to conduct the experiments simultaneously. If all subexperiments are conducted in the sequence below, they can be used to complement a learning unit on evaporation heat and "evaporative cooling." This provides a good basis for further study of general thermodynamics down to the particle level.

The experiment comprises two subexperiments:
· Why do you freeze in wet clothing?
· How does a wet cotton pad cool you?

Notes:
· Observe the safety information in the instructions as well as the applicable safety guidelines for your school.
· All materials mentioned in the instructions will have to be purchased directly from commercial sources.

Video

Siemens Stiftung

Waste water purification (SS)

Video (02:36 minutes):
Demonstrates and describes the individual purification stages in a sewage plant.


Waste water purification in a sewage plant is usually performed in three stages: mechanical, biological, and chemical purification. The video shows the individual stations in a municipal sewage plant, accompanied by detailed explanations.
This video is suitable for further study in the higher grade levels.

Information and ideas:
A content package for interactive whiteboards that deals with sewage plants is available on the Siemens Stiftung media portal.

This video is an excerpt from the teaching DVD, "Chemischer Anfangsunterricht II - Stoffe untersuchen, messen".

Primärmaterial/Quelle

Siemens Stiftung

Otolaryngology

Website:
Website of the American Academy of Otolaryngology - Head and Neck Surgery.

The website offers a broad spectrum of information on the whole field of ear, nose and throat-related areas which goes way beyond the subjects of hearing and hearing impairment. The scientific level of the information requires a certain amount of basic knowledge.

Information and ideas:
Students can find detailed information here. A good reference site for teachers and parents as well.

Anderer Ressourcentyp

Siemens Stiftung

The Ear, Hearing and Hearing Impairment;: Five senses - sense organs (link list)

Link list:
Many interesting links regarding the topic "Five senses - sense organs".

Information and ideas:
Suitable as a source for internet inquiry for the teacher and students.

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment;: Sense organ tongue

Photo:
The tongue as sense organ. We use it to taste with - sweet, sour, salty or bitter?

We can perceive tastes with our tongue. To do this we have receptors in different areas of our tongue.
Each region recognises a different sort of taste.
Very subtle differences, however, can usually only be distinguished with the help of the sense of smell!

Information and ideas:
Students can study the different regions and test them:
- bitter: back part of the tongue
- sour: right and left edges of the tongue, more to the back
- salty: middle - edges left and right
- sweet: tip of the tongue

Relevant for teaching:
The human body
Structure and function of a sense organ
Reception of stimuli and processing of information
Senses discover the environment

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Sense organ of balance

Labeled graphic:
Structure of sense organ of balance with labeling of most important parts.

The sense organ of balance is located next to the hearing organ (cochlea) in the inner ear.
The sense organ of balance is made up of the vestibule and the semi-circular canals. Distinction is made between the sense of position and the sense of rotation.
Sense of position:
The vestibule with saccule and utricle which enable us to perceive our spatial position as well as straight movements.
Sense of rotation:
The three semi-circular canals which enable us to perceive rotational movements.

Information and ideas:
This graphic shows very clearly where the sense organs of balance (sense of position, sense of rotation) are located in the inner ear. It is also clear where they are in relation to the structure of the cochlea.

The graphic can be used as introduction to the topic or to give an overview in order to be able to explain individual parts and sensory organs of the ear.

The teacher can work on the graphic together with students at the computer or get the students to label it themselves either as a printout or at the computer.

Relevant for teaching:
Structure and function of a sensory organ
Reception of stimuli and processing of information.

Bild

Siemens Stiftung

The Ear, Hearing and Hearing Impairment: Sense of position - world not upside down

Photo:
Visual illustration of the sense of position at work: child is hanging upside down from bar and is not losing sense of direction.

We know even with our eyes closed whether we are upside down or whether we are holding our head down. Yes, even with our head down, we can see things the right way up. Our sense of position is the reason for that.

Information and ideas:
Use picture as introduction to sense of position: children enjoy such situations like this one at the playground. Children can tell the class and teacher when they become aware of their sense of position, (e.g. when they are on a roller coaster).

Relevant for teaching:
The human body
Structure and function of a sensory organ
Reception of stimuli and processing of information
Senses discover the environment

Bild

Siemens Stiftung

Noise and concentration - for example music

Photo:
You can do homework more quickly with music on? Tests show this only applies to routine tasks. Otherwise music is more like disturbing noise.

Is music relaxing pleasure or a disturbing noise? This is a very subjective matter. Objectively the answer depends on the specific situation!

Information and ideas:
This question "Music on when doing homework?" is an evergreen. Maybe an objective answer can be reached using the criteria of concentration and effectiveness?

Relevant for teaching:
Hearing defects/hearing impairment
How hearing works
Damage to the sense organs
Noise
Personal health care

Bild

Siemens Stiftung

Inner ear section

Labeled graphic:
Section view with the most important parts of the inner ear. The most important parts are highlighted in color.

Both the sense of balance and the sense of hearing are situated in the inner ear.
The inner ear is formed by a complicated system of cavities. This system is called the bony labyrinth.
Distinction is made between the cochlea, the semi-circular canals and, in between, the vestibule. In the cochlea there are two openings each covered with a taut membrane. These are named after their shape, i.e. round window and oval window. The oval window is a sort of entrance for sound and the round window a sort of exit.

Information and ideas:
Helps to put the inner ear in the overall context of the structure of the ear.
Can be used, for example in a worksheet, for work together in class with the digital projector, as overhead transparency.

Relevant for teaching:
Structure and function of a sensory organ
Reception of stimuli and transmission of information
Functions of senses

Medientypen

Bild

Lernalter

11-18

Schlüsselwörter

Anatomy (human) Ear

Sprachen

Englisch