Energy by Mia Doan https://padlet.com/miadoan2018/8ncirs2abek4ck29 en-us 2022-04-21 07:05:32 UTC 2022-04-26 07:58:56 UTC hello@padlet.com https://padlet.net/icons/png/1f4a1.png What is energy and how do we use it duongyenthy2009 https://padlet.com/miadoan2018/8ncirs2abek4ck29/wish/2151607068 1) What is energy?
=>
- Energy is a source which you need to have the ability to do something.
- It can exist as kinetic, chemical, potential, heat, sound, light, chemical potential, gravitational, nuclear,...

2) How do we use energy?
=> Most important uses of energy:
Daily life
- We use energy to travel, cook,... you basically need energy for all of your activities in a day, even walking, talking, playing sports,...

=> How people get energy:
We get our energy from 2 kinds of sources: Renewable and non-renewable energy.

1) Renewable
- Some renewable energy sources: solar, wind, geothermal, thermal, water, electrical energy,...

- How we get energy from those sources
E.g
+) Solar energy: most people often place solar panels on their roofs to get sunlight - which is solar energy.
+) Electrical energy: we use wind turbines - wind turbines use wind energy to make electrical energy

- What we use these energy sources for:
E.g
+) Solar energy: we need solar energy because it provides heat, light,...
+) Electrical energy: we need electrical energy so that we can use our devices,...
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2) non-renewable
- Some non-renewable energy sources: fossil fuels, natural gas, coal, nuclear,...

- How we get energy from those sources
E.g
+) nuclear: we get nuclear energy from factories

- What we use these energy sources for:
E.g
+) Fossil fuels: we need fossil fuels to run our transport and heat,...
                                                            -Thy-



]]> 2022-04-21 07:08:17 UTC https://padlet.com/miadoan2018/8ncirs2abek4ck29/wish/2151607068 Fossil fuel fact file duongyenthy2009 https://padlet.com/miadoan2018/8ncirs2abek4ck29/wish/2151607251
  • Fossil fuels are called “fossil” because they are made from dead plants and animals
  •  It’s a non-renewable energy 
  • It's cleaner than oil or coal and burns hotter
  • The fossil fuels we use today began forming during the Carboniferous Period which was before dinosaurs ruled the Earth.
  • When fossil fuels are burned, they release unhealthy toxins into the air we breathe
  • Around 90% of our energy comes from fossil fuels
  • Fossils fuels are used in plastics
  • Burning fossil fuels accounted for 74% of U.S. greenhouse gas emissions in 2019
  • The fossil fuel industry receives at least $20 billion in direct federal subsidies
  • Fossil fuels cannot be produced by humans and must first be burned to be used as electricity

    • - Mai Chi

    ]]>     2022-04-21 07:08:26 UTC https://padlet.com/miadoan2018/8ncirs2abek4ck29/wish/2151607251     Renewables and non-renewables energy duongyenthy2009 https://padlet.com/miadoan2018/8ncirs2abek4ck29/wish/2151607514 1) what is renewable energy?
    - renewable energy is energy that can be replaced and made new easily. They never run out because they come from natural resources such as the sun, wind, and water.
    Examples: solar energy, wind energy, hydropower, geothermal energy, and biomass energy.

    2) what is non-renewable energy?
    - non-renewable energy is energy that will eventually run out and can never be used up again. They are usually made with coals and oil deep under the ground that is built up over millions of years.
    Examples: Fossil fuels, coal, petroleum, natural gas

    3) advantages and disadvantages of these energies
       Advantages of renewable energy:
    - They won’t run out and can be replaced naturally.
    - Renewable energy save money -> don't have to spend money on operating costs and fuel to power the energy source. 
    - Renewable energy has a lot of environmental benefits. They emit no pollution into the air -> can reduce our carbon footprint and have a positive impact on the environment.
    - This type of energy can cut down on waste like carbon emissions.

       Disadvantages of renewable energy: 
    - Technology used to create renewable energy can be expensive.
    - Some resources (like wind, solar, etc) are not always available.

       Advantages of non-renewable energy:
    - They are usually more affordable
    - These energies are easy to find anywhere

       Disadvantages of non-renewable energy:
    - They cannot be replaced or reused (like fossil fuel)
    - Chemicals produced from non-renewable energy can be harmful to our health
    - Sources like oil, coal, etc harm the ozone layer and the environment

    ~ Minh Anh and Hien Anh]]>     2022-04-21 07:08:41 UTC https://padlet.com/miadoan2018/8ncirs2abek4ck29/wish/2151607514