"Opening the Energy Treasure House" PPT

Description

Hunan Education Edition Sixth Grade Science Volume 1, Opening up the Energy Treasure PPT

Part One: People are consumers

People are consumers

We cannot directly and effectively use energy from the sun like plants, but all activities in our lives require energy. At present, we mainly utilize the energy stored in fuels such as coal, oil, and natural gas.

energy

Energy is a material resource that can provide energy to human beings.

Coal, oil and natural gas cannot be compensated in a short time and are non-renewable resources.

Energy provided by living things such as wood, grass, and meat, as well as water energy, solar energy, wind energy, etc., are renewable resources.

Non-renewable resources are almost exhausted. We must save energy and develop new energy sources for the future.

Open the energy treasure house PPT, the second part: What energy sources do we use in our lives?

What energy sources do we use in our lives?

Water energy: Since the Three Gorges Project officially started generating electricity in 2003, between July 2012 and July 2012, the cumulative power generation of the Three Gorges Power Station reached 564.8 billion kilowatt-hours, which is equivalent to lifting nearly 200 million tons of standard coal from the roaring Yangtze River, reducing emissions. 400 million tons of carbon dioxide and more than 5 million tons of sulfur dioxide.

Utilization of wind energy

Utilization method: mechanical energy, wind power generation

Favorable factors:

universality, persistence

Wind power is a clean natural energy source with no environmental pollution issues.

Wind power technology is becoming increasingly mature, with an availability rate of more than 95%. The economics of wind power generation are improving day by day, and the cost of power generation is close to that of coal power and lower than oil power and nuclear power. The wind farm construction period is short. It only takes a few weeks to install a single unit. It only takes half a year to a year from civil construction, installation to commissioning.

Disadvantages: low density, intermittent

Open the energy treasure house PPT, the third part: Wonderful ideas for developing new energy sources

Wonderful ideas for developing new energy sources

What would our lives be like if there were no coal, oil and natural gas on the earth now?

Will we sit back and wait for death?

Examples of new energy: Guangdong Province’s cassava and sugar cane production bases for fuel alcohol use oleyl alcohol to drive vehicles. Extracting natural gas from giant kelps in the United States and more.

Save energy and develop new energy

What energy is used in our hometown, and which energy is wasted?

Energy saving plans and confidence in developing new energy sources.

Develop good habits, save money, waste is shameful, and protecting the environment starts with me.

Keywords: Hunan Education Edition sixth grade science PPT courseware free download, open the energy treasure house PPT download, .PPT format;

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Update Time: 2024-11-03

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

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