"Energy and the Sun" Energy PPT Courseware

Description

"Energy and the Sun" Energy PPT Courseware

Talk about it

What "work" have coal, oil, and natural gas done for us?

Where does such a large amount of energy come from?

talk

Taking coal as an example, where do students think the energy contained in coal comes from?

1. Traces of plant branches and leaves can often be seen on the surface of coal, and coal in the shape of a complete tree trunk has even been found.

2. Coal is mostly sandwiched in rock formations formed from ancient sedimentary sediments.

3. Coal is distributed layer by layer in the rock formation.

4. Hundreds of millions of years ago, the climate on the earth was warm, rainfall was abundant, and plants grew very luxuriantly.

Where does the energy contained in coal, oil, and natural gas come from?

Energy stored in ancient plant and animal remains

How are they related to the sun?

Their energy ultimately comes from the sun

Do you know what other energy sources we can use?

Geothermal, wind energy, ocean tides, atomic energy, solar energy, nuclear fuel, biogas

According to the existence of nature, people divide energy into natural energy and secondary energy.

Geothermal energy, wind energy, ocean tides, atomic energy, solar energy, nuclear fuel, and biogas are natural energy sources.

Coal, oil, and natural gas are secondary energy sources, which are non-renewable energy sources.

practice

True or False

(1) Oil and natural gas are both renewable energy sources ( )

(2) Coal was formed hundreds of millions of years ago when plants were buried underground and underwent long-term changes ( )

(3) Most of the coal buried underground is sandwiched in rock formations formed by ancient silt deposits. ( )

1. Most of the energy we use comes from ______, and we have directly converted solar energy into ______.

2. Among the energy we use now, ______, ______, and ______ are the most important energy sources.

3. According to a lot of evidence, it is speculated that coal was slowly transformed from ancient ______; oil and natural gas are also similar to coal, and were formed from large amounts of ______ hundreds of millions of years ago through long-term and complex changes. .

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

"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 download:

"Energy and the Sun" Energy PPT Download Part One: 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 observation: Plants can often be seen on coal...

"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...

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Update Time: 2024-09-22

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

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