Lesson 2. 2.2 Energy from the Sun

From the
1 / 27
Slide 1: Tekstslide
Natuurkunde / ScheikundeMiddelbare schoolhavo, vwoLeerjaar 1

In deze les zitten 27 slides, met tekstslides en 3 videos.

Onderdelen in deze les

From the

Slide 1 - Tekstslide

This lesson
  • Recap
  • About the sun
  • Paragraph 2.2

Slide 2 - Tekstslide

Learning goals

• Describe how energy in our food comes from the sun
• Explain why the sun is the source of energy for everything in our solar system
• Name three types of fossil fules
• Name the six types of green energy (Solar, Wind Hydro, Geo-thermal, Bio, Nuclear)
• Describe the difference between solar cells and solar panels  

Slide 3 - Tekstslide

Learning goals — Recap
  •  Give a definition for energy
  • Describe where we get our energy from
  • Know the unit of energy

Slide 4 - Tekstslide

Learning goals — Recap
The definition of energy
  •  The ability to do work

Where do we get our energy from?
  • Out of the food we eat

The unit of Energy
  • Joule (J), kilojoules (kJ)

Slide 5 - Tekstslide

Energy from the Sun

Slide 6 - Tekstslide

What do you know about the sun?

Slide 7 - Tekstslide

Slide 8 - Tekstslide

Slide 9 - Video

Slide 10 - Video

Paragraph 2.2
1) How does the energy from the sun get into our bodies?
2)How are fossil fuels created?
3) Name three examples of fossil fuel
4) What is a biofuel?

Slide 11 - Tekstslide

1) How does the energy from the sun get into our bodies?
  • Plants use the energy from the sun to grow using  photosynthesis.

  • This way energy from the sun gets stored in plants.

  •  When animals eat plants they use the energy stored in the plants to grow themselves.

Slide 12 - Tekstslide

2)How are fossil fuels created?
  • Many trees and animals died over millions of years

  • As the surface of the earth changed they got buried under sediments such as mud, sand and earth.

  • This created massive amounts of pressur. Over time they were converted into fossil fuels.

    Slide 13 - Tekstslide

    3) Name three types of fossil fuels
    •  Coal : formed from plants

    •  Gas : fromed from sea creatures

    • Oil: fromed from sea creatures 

    Slide 14 - Tekstslide

    4. what are biofuels
    any fuel that is derived from biomass—that is, plant or algae material or animal waste.
    Alcohol and wood are examples of biofuel.

    Slide 15 - Tekstslide

    Green energy
    What do you know about?

    • Why is it important?
    • How is it different from fossil fuel?
    • How is it generated?

    Slide 16 - Tekstslide

    Renewable or green energy
    Renewable energy uses energy sources that are not "used up". For example, solar power from the sun is renewable as we can use it  again and again.  Examples of non-renewable energy sources include fossil fuels like coal and oil. 

    Slide 17 - Tekstslide

    Slide 18 - Video

    Most common sources of green energy
    • Solar
    • Wind
    • Hydro
    • Geo-thermal
    • Biomass

    Slide 19 - Tekstslide

    Solar energy
    Solar panels
    Solar cells

    Slide 20 - Tekstslide

    Wind energy
    Wind turbine: Wind makes the wind turbines turn around.

    Slide 21 - Tekstslide

    Hydro energy (water)
    Hydropower plant

    Slide 22 - Tekstslide

    Geo thermal 
     this type of energy is found under the earth. The hot lava from a volcano can be used as a source of heat.

    Slide 23 - Tekstslide

    Bio mass
    Biomass energy uses natural materials like trees and plants to make electricity.

    Slide 24 - Tekstslide

    Nuclear energy 
    Nuclear energy is the energy in the nucleus, or core, of an atom.  There is a huge amount of energy in an atom's dense nucleus

    Slide 25 - Tekstslide

    Workbook exercises 2.2

    Slide 26 - Tekstslide

    Next lesson — Homework check
    •  Yellow block exercises (textbook)
    • Workbook exercises (workbook)

    •  Yellow block exercises (textbook)
    • Workbook exercises (workbook)

    Slide 27 - Tekstslide