Presentation is loading. Please wait.

Presentation is loading. Please wait.

1.Turn in your worksheet on “The Lorax”.

Published byArnold Johnson Modified over 6 years ago

Similar presentations

Presentation on theme: "1.Turn in your worksheet on “The Lorax”."— Presentation transcript:

1 1.Turn in your worksheet on “The Lorax”.
Unit 2: Energy Conservation and Transfer Focus: Hydroelectric Energy Day 7: 11/27/17 1.Turn in your worksheet on “The Lorax”. 2.Pick up the “How Electricity is Made” worksheet and the Energy Study Guide. 3. Science starter: Copy this question: Sugar is added to water and the mixture is stirred. Which observation is evidence that the sugar dissolved in the water? *Less sugar is visible *The water is cloudy *The sugar turned into crystals *Bubbles formed in the water

2 Quick review/3-column chart on geothermal and wind energy
Plan for the Day Quick review/3-column chart on geothermal and wind energy Presentation and lesson on hydroelectric energy and biomass energy Notes/chart Videos

3 Geothermal Wind

4 Homework Worksheet “How Electricity is Made”.
Begin working on energy unit test study guide. Due next Tuesday. Energy Unit test next Tuesday.

5 Essential Questions – Copy on p. 37
What are the pro’s and con’s of hydroelectric energy and biomass energy?

6 Carrying Capacity… An example ‘cause it’s on the quiz
Carrying Capacity… An example ‘cause it’s on the quiz! The softball coach is wrapping ankles before the game. The tape will be enough to wrap the ankles of his team only. Fortunately, no players from the other team ask him to wrap their ankles. What is the carrying capacity situation in this example? How would you define carrying capacity?

7 Hydroelectric group…get ready to present.

8 Think about it…Can a fish climb a ladder?

9 Let’s hear from the hydroelectric group.

10 3. Hydro-Power Definition: moving (falling) water turns the blades of turbines operating electricity generators, and transforming the potential energy of water at the top of a waterfall into kinetic energy and then into electricity. Advantages: *Renewable and reliable-water cycle continually supplies water *Creates lakes and reservoirs to increase local water supply *Does not produce pollution or waste *No fuel costs and low maintenance costs once the dam is built *Very efficient-makes a lot of electricity Disadvantage: *Loss of fish and other aquatic animals and plants -damage ecosystems above and below the dam *Dams are expensive *Can flood existing farmland (drown forests; force towns to move) *Downstream, amount & quality of water may change

11 Let’s review hydroelectricity.
Hydroelectric dam/Canada

12 Let’s watch a Brainpop on Hydroelectricity.
Hydroelectricity Brainpop Video Listen for the following: *What are two ways dams can affect the quality of water below the dam? *What is a solution designed to help fish that must swim upstream to spawn?

13 Fish Ladders

14 Have your energy chart ready to add info about biomass
Have your energy chart ready to add info about biomass. Let’s go Biomass group.

15 9. Biofuel/Biomass Definition: Burning wood, paper, organic material, animal waste or even garbage to create heat to turn water to steam... turbines… generators. (need a fuel) Advantages: Renewable-we can continually grow plants/there will always be waste Less waste in landfills Carbon-neutral – CO2 is produced when plant material is burned/but other plants/trees are taking in CO2 from the air at the same time Emits less carbon when burned than fossil fuels Disadvantages: Gives off pollution, but not as bad as burning fossil fuels Releases some CO2 Biofuel crops use land that could be used for growing food Fossil fuels are used during planting, harvest, and transport of plant crops (tractors/other machinery/trucks) Is not as efficient as fossil fuels/takes a lot of biomass to generate significant amounts of electricity

16 Let’s watch a Brainpop video about biofuels/biomass energy.
Listen for the following: How do plants used for biofuel help with carbon in the air? What is the most common biofuel? ls/preview.weml

17 Work on your solar energy homework sheet and then your study guide
Work on your solar energy homework sheet and then your study guide. Use your energy sources chart.

18 Wrap-up What is the most important thing you learned today? Why is this important to you and your world? Be prepared to share.

Download ppt "1.Turn in your worksheet on “The Lorax”."

Similar presentations

Disadvantages Inefficient (only 30% efficiency).

Disadvantages Inefficient (only 30% efficiency).
Energy is the ability to do work (move a mass in the direction of force) or to cause a change. Wind has energy to move these wind turbines.

Energy is the ability to do work (move a mass in the direction of force) or to cause a change. Wind has energy to move these wind turbines.
What are some renewable energy resources?

What are some renewable energy resources?
8th Grade Do Now 09/30/13 Essential Question: How is energy essential to our way of life? Objective: I can define Energy I can describe various forms of.

8th Grade Do Now 09/30/13 Essential Question: How is energy essential to our way of life? Objective: I can define Energy I can describe various forms of.
Hydro-Electric Power. Worldwide, Hydro-Electric Power plants produce about 24 percent of the world's electricity and supply more than 1 billion people.

Hydro-Electric Power. Worldwide, Hydro-Electric Power plants produce about 24 percent of the world's electricity and supply more than 1 billion people.
Passive Solar Energy  Uses solar radiation to maintain a comfortable temp in the building without electrical aid  South-facing windows, which absorb.

Passive Solar Energy  Uses solar radiation to maintain a comfortable temp in the building without electrical aid  South-facing windows, which absorb.
Active Solar (think solar panels) Production – Use the sun’s energy to heat water or air Either stored or used immediately – Photovoltaic cells are used.

Active Solar (think solar panels) Production – Use the sun’s energy to heat water or air Either stored or used immediately – Photovoltaic cells are used.
Renewable Energy. Energy An essential part of modern society Need reliable supply The U.S. constitutes less than 5% of the world population, but uses.

Renewable Energy. Energy An essential part of modern society Need reliable supply The U.S. constitutes less than 5% of the world population, but uses.
Renewable Energy Sources. Anticipatory Guide Turn to p.130 in your book and begin filling out Renewable Resources notes. Inexhaustible energy sources.

Renewable Energy Sources. Anticipatory Guide Turn to p.130 in your book and begin filling out Renewable Resources notes. Inexhaustible energy sources.
Another Look at Renewable Energy Resources Student will identify five types: hydroelectric, solar, wind, biofuels and geothermal.

Another Look at Renewable Energy Resources Student will identify five types: hydroelectric, solar, wind, biofuels and geothermal.
BELLWORK Which type of renewable energy would you prefer - solar or wind? Justify your answer.

BELLWORK Which type of renewable energy would you prefer - solar or wind? Justify your answer.
Energy Resources A natural resource that can be converted by humans into other forms of energy in order to do useful work.

Energy Resources A natural resource that can be converted by humans into other forms of energy in order to do useful work.
Lesson12: Renewable energy Resources Learning objective: To learn about different sources of renewable energy Starter:

Lesson12: Renewable energy Resources Learning objective: To learn about different sources of renewable energy Starter:
Natural Resources. FOSSIL FUELS –Take millions of years to form –Form from ancient decaying organic/living material –three types: coal (hydrocarbon rock)

Natural Resources. FOSSIL FUELS –Take millions of years to form –Form from ancient decaying organic/living material –three types: coal (hydrocarbon rock)
1 Objective: To examine the energy source use in the United States for electricity production Warm-up: Tell an advantage & a disadvantage of using fossil.

1 Objective: To examine the energy source use in the United States for electricity production Warm-up: Tell an advantage & a disadvantage of using fossil.
Alternative Resources

Alternative Resources
Energy Resources. What are Fossil Fuels? Fossil Fuels are energy rich substances formed from the remains of once living organisms. The 3 main fossil fuels.

Energy Resources. What are Fossil Fuels? Fossil Fuels are energy rich substances formed from the remains of once living organisms. The 3 main fossil fuels.
Question of the Day 1. One advantage of nuclear energy = 2. One disadvantage of nuclear energy = 4-19.

Question of the Day 1. One advantage of nuclear energy = 2. One disadvantage of nuclear energy = 4-19.
Energy The ability to do work or cause change Examples – kinetic or potential Non-example – matter, ideas Related Words – forms, sources, transfer, transformation.

Energy The ability to do work or cause change Examples – kinetic or potential Non-example – matter, ideas Related Words – forms, sources, transfer, transformation.
Energy Resources. Nature of Energy Energy is all around you! –You can hear energy as sound. –You can see energy as light. –And you can feel it as wind.

Energy Resources. Nature of Energy Energy is all around you! –You can hear energy as sound. –You can see energy as light. –And you can feel it as wind.

Similar presentations

Ads by Google