"Energy and the Sun" Energy PPT download

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"Energy and the Sun" Energy PPT download

Part One Content: New Lesson Exploration

Among the energy we use, coal, oil, and natural gas are important energy sources. Why are they hidden deep underground and how were they formed?

By observing:

Traces of plant branches and leaves can often be seen on the coal. In some coal seams, coal with a complete tree trunk shape is even found.

Most of the buried coal is embedded in rock formations formed from ancient sediments.

Coal is also buried layer by layer underground.

Scientists' research has confirmed that: 200 to 300 million years ago, the climate on the earth was warm, rainfall was abundant, and plants grew very luxuriantly.

Summary: Coal is derived from ancient plants. At that time, after a large number of ferns died, the remains sank into the water and were buried deep underground. Due to the action of anaerobic bacteria (microorganisms that do not like oxygen) and the undulating movement of the earth's crust, the plant remains gradually turned into peat and lignite. , bituminous coal, and even anthracite.

Energy and the Sun PPT, Part 2: Expansion and Extension

Solar energy comes from its core, which is less than 500,000 kilometers in diameter. The temperature at its core is as high as 15 million degrees, and the pressure is extremely high, with a pressure of 250 billion atmospheres. Under such high temperature and high pressure conditions, a nuclear fusion reaction occurs, and every four hydrogen nuclei combine to form a helium nucleus.

Wear a solar hat under the bright sun during the day to block the sun while also storing the sun's energy. When night falls, this fully charged solar hat can emit light and illuminate everything in sight.

Energy and the Sun PPT, Part 3: Class Summary

Through understanding the formation process of coal, we know that the energy contained in coal, oil, and natural gas is solar energy stored for hundreds of millions of years, and we also know some new energy sources.

Energy and the Sun PPT, Part 4: Inspection in class

1. Fill in the blanks

1. ( ) contains huge energy and is the "mother of energy" for mankind.

2. ( ) has huge energy.

3. ( ) are some energy sources that are less polluting and renewable.

4. Coal is buried underground ( ).

Energy and the Sun PPT, Part 5: Homework

How humans use solar energy, write down what you know.

Keywords: Free download of Chinese PPT courseware for the first volume of the sixth grade in the textbook edition, download of energy and sun PPT, download of energy PPT, .PPT format;

For more information about the "Energy Energy and the Sun" PPT courseware, please click on the Energy PPT Energy and the Sun PPT tab.

"Energy and the Sun" Energy PPT teaching courseware:

"Energy and the Sun" Energy PPT Teaching Courseware Part One: Introduction of New Lessons Coal, oil and natural gas are often used in our daily production and life. The fact that they can do so much work for us shows that they contain huge energy, so...

"Energy and the Sun" Energy PPT:

"Energy and the Sun" Energy PPT Part One Content: The Information Coal Brings Us By analyzing the information coal brings us, what inferences can be made about the formation of coal? We can often see traces of plant branches and leaves on coal, and even...

"Energy and the Sun" Energy PPT courseware 3:

"Energy and the Sun" Energy PPT Courseware 3 Among the energy we use, coal, oil, and natural gas are important energy sources. Why are they hidden deep underground and how were they formed? Let’s talk about it. Taking coal as an example, where do students think the energy contained in coal comes from? I..

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Update Time: 2024-09-28

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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