THE INTERNAL STRUCTURE OF THE EARTH

THE INTERNAL STRUCTURE OF THE EARTH

At the end of the chapter, students should be able to :

1. Describe the different types of landform

2. Describe the layers of the earth

TASK :

Describe the characteristics of the type of landform!

LAYERS OF THE EARTH

1. The Core

The core is the centre of Earth. Temperatures here can be as high as 5.000 degree celcius. Interestingly, although the temperatures are high, the innermost part of the core is solid. It is because of the great pressure and weight exerted on the core by the outer layers of the earth.

2. The Mantle

The mantle is almost 2.900 km thick and makes up nearly 80 percent of the earth total volume. The temperatures in this layer reach more than 2.000 degrees celcius and the upper part of this layer is often is a semi molten or semi liquid state.

3. The Crust

The crust is the outermost layer of the earth. It is solid and varies in thickness from 6 – 70 km. the earth’s crust is not continous layer but is made up of many separate pieces called plate. The plates float on the semi molten mantle beneath them. They are of different sizes and they seem to fit together like a jigsaw puzzle.

“According to scientist, the plates originally formed one gigantic piece of land, or supercontinent, called pangaea. Over million of years, the plates separated and moved to become the pieces of land that we see today.”

“Plural of the plateau is plateaux”

LANDFORM

At the end of the chapter, students should be able to :

• Explain the interrelationships between the components of the physical environment

LANDFORM

The earth have a four component :

1. The atmosphere is the layer of air that surrounds the earth

2. The lithosphere consist of landform and rocks found on the earth

3. The biosphere is made up of the living environment

4. The hydrosphere is made up of rivers, lakes and oceans

TYPES OF LANDFORM

Landform and rocks are created and changed by processes beneath and on the earth surface, consist of :

1. Rivers are streams which flow from high ground to low ground include waterfalls and deltas.

2. Mountain is an area of high ground, usually more than 600 metres high. It often has step slopes and a narrow top or peak. Where a few mountains are located close together, they form a mountain range.

3. Hill Is an area of high ground, usually less than 600 metres high. It is typically rounded in shape and has gentle slopes

4. Plain is a broad, flat and low area on the earth surface

5. Plateau is generally a raised area of land with a fairly flat, broad top and steep slopes

Is land formed when a large quantity of magma escapes from a long crack or fault in the earth’s crust and spreads over a very large area

this lava then solidifies on the earth’s surface, and after numerous eruption, these layers of hardened lava result in a plateu. We can found in iceland and greenland

famous and highest plateux in the earth’s are Tibetan Plateau in Tibet

another plateaux is :

1. Colorado Plateau in USA

2. Giza Plateau in Agypth

WHAT IS GEOGRAPHY ?

• At the end of the chapter, student should be able to :

1. Understand the importance of studying geography
   
2. Understand the physical-human realtionship in geography
3. Understand the value of fieldwork in geography

WHAT IS GEOGRAPHY ?

“GEOGRAPHY” COMES FROM THE ANCIENT GREEK WORDS

“GEO” MEANING “EARTH”

AND

“GRAPHIEN” MEANING “TO WRITE”.

OR

“TO WRITE ABOUT, OR DESCRIBE THE EARTH”

( Geography is much more than just identifying the capital cities or locating countries on the map. Geography encompasses the study of places, environment and features on the earth’s surface. It examines the natural processes at work and the relationship between people and the environment. Geography help us to better understand and appreciate the world we live in or study of the environment that we live )

Task :

Mention the place or country that you would like to travel to and explain to us why you chose the destination !

WHEN WE STUDY GEOGRAPHY, WE ARE INTERESTED IN OUR ENVIRONMENT. THE ENVIRONMENT THAT WE LIVE CAN BE DIVIDED INTO THE PHYSICAL AND THE HUMAN ENVIRONMENT.

( The physical environment refers to the earth’s physical features and the processes leading to their formation. Physical features are things that occur naturally on the earth, such mountains and volcanoes. They axist in nature and cannot be created by people. Examples of physical features that we will learn about are rocks and different types of natural vegatation )

and

( The Human environment describes the way people live, work and interact with the physical environment. For example, we will learn where people live, the types of housing people live in and what people do )

Task :

1. Discuss how the earth’s physical features and the processes and the processes leading to their formation can affect humans both positively and negatively.
2. Why human activities must change the physical environment and what negatively for our live ?

As we study geography, we will come to understand how the earth’s physical features and the processes that shape them have an influence on human lives. For example, people usually build their homes in places where there is abundant fresh water and where it is possible to grow crops. Natural disasters such as hurricanes and earthquakes affect people negatively because than can distroy lives and property.

WHY DO WE STUDY GEOGRAPHY ?

it is natural for us to know more about our environment and the world we live in. the knowledge that we gain will help us to better understand the world arround us

geography helps us realise that there is a relationship between people, plant and animals because we all share one home -the earth

Develops skill in locating and acquiring information, critical thinking and decision making. example, we learn map reading skills to locate cities and analyse pattern of land use as well as change made to the environment.

UJIAN PRAKTEK IPS KELAS BILINGUAL

SMP TARUNA BAKTI

TAHUN PELAJARAN 2008-2009

Langkah-langkah praktek :

1. Setiap siswa diharuskan membuat mind mapping tentang materi konsumsi dan kreatifitas.
2. Bentuk dan ketentuan tentang mind mapping dapat melihat materismptarbak.blogsot.com atau akselerasismptarbak.blogspot.com.
3. Mind mapping dibuat dalam kertas A3.
4. Kreasi dan tambahan untuk mind mapping diserahkan sepenuhnya kepada siswa tanpa menghilangkan makna dan teori yang harus disampaikan.
5. Pengumpulan tugas dikolektif oleh KM masing-masing :
6. Tugas yang terkumpul di KM harus diserahkan kepada guru dalam kondisi sudah tersampul rapi dengan kelengkapan cover, nama siswa yang mengumpulkan dan dijilid.
7. Tugas yang terkumpul akan menjadi passport bagi siswa untuk mengikuti ulangan terakhir semester genap.
8. Bagi siswa yang terlambat mengumpulkan tugas tidak diperkenankan untuk mengikuti ulangan dan mendapatkan nilai 0 untuk praktek.
9. Bandung, Mei 2009

Kelas VII A : paling lambat hari senin, 25 Mei 2009.
Kelas VII B : paling lambat hari Jum’at, 5 Juni 2009·
Kelas VII C : paling lambat hari Rabu, 7 Mei 2009.
Kelas VII D : paling lambat hari Rabu, 7 Mei 2009.
Kelas Bilingual : paling lambat hari selasa, 26 Mei 2009

Guru mata pelajaran IPS Terpadu

Imam Wibawa Mukti,S.Pd

UJIAN PRAKTEK IPS KELAS VII REGULER

SMP TARUNA BAKTI

TAHUN PELAJARAN 2008-2009

KELAS VII

Aturan Pelaksanaan :

1. Pada saat praktek setiap siswa diwajibkan membawa :

a. Dua (2) artikel Koran yang membahas tentang kreatifitas (teori-tokoh-produk).

b. 10 Kertas HVS ukuran A4 80 gram.

c. Double tape.

d. Gunting/cutter/sejenis

e. Penggaris besi.

f. Klip kertas.

g. Alat tambahan yang diperkirakan perlu untuk membuat kliping.

2. Yang harus dipersiapkan siswa di rumah :

• Membuat opini dari artikel yang dibawa minimal setengah halaman HVS A4 dengan huruf Arial ukuran 12 spasi 1.

Pengguntingan dan penempelan dilaksanakan di kelas pada hari Jum’at, 29 Mei 2009

UJIAN PRAKTEK IPS KELAS VII REGULER DAN BILINGUAL

SMP TARUNA BAKTI

TAHUN PELAJARAN 2008-2009

KELAS VII

Aturan Pelaksanaan :

1. Pada saat praktek setiap siswa diwajibkan membawa :

a. Dua (2) artikel Koran yang membahas tentang kreatifitas (teori-tokoh-produk).

b. 10 Kertas HVS ukuran A4 80 gram.

c. Double tape.

d. Gunting/cutter/sejenis

e. Penggaris besi.

f. Klip kertas.

g. Alat tambahan yang diperkirakan perlu untuk membuat kliping.

2. Yang harus dipersiapkan siswa di rumah :

· Membuat opini dari artikel yang dibawa minimal setengah halaman HVS A4 dengan huruf Arial ukuran 12 spasi 1.

Pengguntingan dan penempelan dilaksanakan di kelas pada hari Jum’at, 29 Mei 2009