Speleologists and Caves

Содержание

1. Speleologists and Caves
2. Caves were probably prehistoric man’s first shelter
3. In some of these caves bones and skulls have been found belonging to the species homo.
4. How are caves formed ? Mainly by
5. It is surprising and mysterious , with
6. Speleologist , the scientific study of caves,
7. Man started studying caves long ago ,
8. Lately, speleologists have begun anew kind of
9. Made by Elin Igor ,11a form
10. Скачать презентанцию

Caves were probably prehistoric man’s first shelter and home . In Europe , Africa and Asia there are numerous places that confirm this , where we can see graffiti of animals

Слайды и текст этой презентации

Слайд 1Speleologists and Caves.

Слайд 2
Caves were probably prehistoric man’s first shelter and home .

In Europe , Africa and Asia there are numerous places

that confirm this , where we can see graffiti of animals , men and tools.

Caves were probably prehistoric man’s first shelter and home . In Europe , Africa and Asia there

Слайд 3
In some of these caves bones and skulls have been

found belonging to the species homo.

Слайд 4
How are caves formed ? Mainly by the action of

water and glaciers , over thousands of years, and the

changes caused by the erosion, fracture and corrosion of the earth’s surface. Together these agents have created a wonderful underground world .

How are caves formed ? Mainly by the action of water and glaciers , over thousands of

Слайд 5
It is surprising and mysterious , with its astonishing, multicolored

stalactites and stalagmites, lakes and rivers whose waters are refreshingly

pure.

It is surprising and mysterious , with its astonishing, multicolored stalactites and stalagmites, lakes and rivers whose

Слайд 6
Speleologist , the scientific study of caves, is becoming ever

more popular, as fascinating new discoveries are made in this

field.

Speleologist , the scientific study of caves, is becoming ever more popular, as fascinating new discoveries are

Слайд 7
Man started studying caves long ago , around 1700 but

it is only in this century that speleologist has really

become a branch of scientific investigation. ”Pot-holing” (exploring deep holes worn in rock) is best carried out by teams of experts who study the kind of rock in question, how a particular cave was formed, erosion caused by water, and any animal and plant life there is to be found.

Man started studying caves long ago , around 1700 but it is only in this century that

Слайд 8
Lately, speleologists have begun anew kind of experiment; they are

studying how the human body and mind react to staying

under ground for lengthy periods. Everything is carefully monitored; blood pressure, heartbeat, cerebral activity, and the influence on man’s behavior.