| Category | Format | Size |
|---|---|---|
| Hunan Education Edition Fifth Grade Science Volume 1 | pptx | 6 MB |
"The Earth's Interior" PPT download
Description
Hunan Education Edition fifth grade science volume 1, the interior of the earth PPT download
Part One: Problem Exploration
1. What exactly is inside the Earth?
2. How can we learn about the Earth’s interior?
3. How do scientists investigate?
Group exploration: There are different items in three black plastic cups. How can you tell them apart without opening the lid?
Thinking: Can these methods be used to study the internal structure of the earth? Why?
Scientists have long wanted to drill holes to detect the internal structure of the earth. Unfortunately, so far, humans have only been able to drill holes to a depth of 14 kilometers. If a cooked egg is compared to the earth, even the eggshell has not been drilled. Tooru!
The interior of the earth PPT, part 2: analysis of knowledge points
1. Volcano
Think: What do scientists know about volcanic eruptions?
1. Volcanoes are caused by the internal movement of the earth.
2. The interior of the Earth is filled with magma.
2. Geothermal:
It is a manifestation of the earth's internal movement, and it can also bring information about the earth's interior to humans.
3. Earthquake
scientists:
Understand the Earth's internal structure through traces of earthquake fractures.
Know that the earth's surface is made of rock.
Crust: The thin layer on the surface of the Earth.
• Composition: Various rocks.
• Thickness: average thickness (33) kilometers, oceanic bottom crust is thinner, average
(6) kilometers, the thinnest part is less than (5) kilometers; the continent is thicker and average
(40) kilometers, with a maximum thickness of (70) kilometers (Qinghai-Tibet Plateau).
Core: The central part of the Earth
• Thickness: (3478) kilometers thick.
• component:
Core: (1278) kilometers.
Outer core: (2200) kilometers.
Keywords: Hunan Education Edition fifth grade science PPT courseware free download, Earth's interior PPT download, .PPT format;
For more information about "The Earth's Interior" PPT courseware, please click the Earth's Interior PPT tab.
"The Earth's Interior" PPT courseware:
Hunan Education Edition, Fifth Grade Science Volume 1, Earth's Interior PPT Courseware, Part One: Materials Material 1: When crustal rocks fracture and move, strong vibrations will occur, which are earthquakes. The energy released by an earthquake is so huge that it can make the earth look like a...
"The Earth's Interior" PPT:
Hunan Education Edition 5th Grade Science Volume 1, Earth's Interior PPT, Part One Content: Leading scientists have long wanted to drill holes to detect the Earth's internal structure. Unfortunately, so far, the depth of human drilling can only reach 14,000 Rice, if you compare a cooked egg to ground...
"The Internal Structure of the Earth" Unquiet Earth PPT Courseware 4:
"The Internal Structure of the Earth" Unquiet Earth PPT Courseware 4 Moho The Moho is located at a depth of 30-40km below the surface. After reaching this interface, the average speed of longitudinal waves suddenly rises from 6-7km/s to 8.1km/s , this mutation is global. This was done by scholars from the former Yugoslavia..
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Update Time: 2024-07-02
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