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Unit 1: Energy in our Lives
• Knowledge of natural resources• Ways we use energy• Forms of energy• Energy transformations• Electricity• Nonrenewable & renewable resources• Energy sources with the greatest potential
for use in Arizona
Brainpop: Energy Sources
Natural Resources – Raw materials and energy that we take from the natural
environment for human use.• Raw materials and energy obtained from the
environment for human use.
• Original source of all goods.
• Sustain human life.
• Future generations will likely depend on the same natural resources we depend on today.
• Can be renewable or nonrenewable.
Brainpop: Natural Resources
Renewable vs. Nonrenewable• Renewable: can be made again, or renewed, by
nature.• Some limited; some unlimited
– Heat of the Earth (geothermal)– Biomass (plants, trees, crops, animal wastes)– Movement of water (hydropower)– Wind– Sun/Solar radiation
• Nonrenewable: Cannot be made again by nature:• Limited amount
– Fossil fuels (coal, oil, & natural gas)– Nuclear or atomic energy (stored in nucleus of an atom)
Brainpop: Fossil Fuels
Natural Resources Are Us• Find & lay in a line the following 7 final products:
– 1. Books– 2. jeans– 3. soda can– 4. drum & guitar– 5. computer CPU– 6. copper pipe & wire– 7. backpack
• Line up the rest of the cards under each final product to show the order in which the product was made.
• There 3 cards that go with each final product• Example: Plastic Bottle plastic processed oil or
petroleum oil well
Natural Resources: Answers• Books
– Paper– Logs– Trees/sun, soil, water
• Jeans– Denim fabric– Cotton bolls– Cotton plants/ sun, soil
water
• Soda Can– Sheets of aluminum– Aluminum ingots– Bauxite mine
• Drum & Guitar– Partially made instruments– Hardwood planks– Hardwood trees/sun, soil, water
• Computer CPU– Circuit board– Silicon (Si)– Silicon mine
• Copper Pipe & Wire– Processed copper– Copper ore– Copper mine
• Backpack– Nylon fabric & thread– Processed oil/petroleum– Oil well
Energy A - Z
Energy in science is defined as the capacity to do work or create change.
• We will NOT be focusing on energy outside of our bodies. (No running, lifting, etc..)
• We WILL be focusing on energy used to power appliances or fuel vehicles.
Thinking Time . . .
• Discuss with your group:– Look at the following four categories of energy use– Which uses the most? Which uses the least? In box #2
rank the following categories: 1- 4 from most to least.» Residential – electricity used in our homes» Industrial – industry and manufacturing» Commercial – stores and restaurants» Transportation – personal and commercial
use of transportation
Now, Lets look at the next slide and find
out . . .
Residential 22% includes energy used in our homes – electricity for lights & electric appliances; natural gas for a furnace, stove, or hot water.
Commercial 18% includes commerce or business and trade such as stores or restaurants where we make purchases.
Transportation 27% includes personal use of cars, busses, trains, or planes, as well as transportation related to commerce and industry.
Industrial 33% includes industry and manufacturing, such as the energy needed to make metals from raw ore, or plastic from oil, denim fabric from cotton, as well as making cars, computers, or blue jeans with processed materials.
What was the most surprising fact you learned?
What was the least surprising?
Write the information you learned about the four categories of Energy usage in your packets. Be sure to include the percentages.
Thinking Time . . .
• Discuss with your group:
What do you think is the percentage of
nonrenewable resources vs. the renewable resources used in the United States.
example: 40% nonrenewable
60% renewable
As a group, decide upon a percentage.» Hmmmm . . .
Now, Lets look at the next slide and find
out . . .
What was the most surprising fact you learned?
What was the least surprising?
Write the information you learned about the four categories of Energy usage in your packets. Be sure to include the percentages.
Thinking Time . . .
• Discuss with your group:
Which country uses the most energy and which country uses the least – Rank the following countries in the order of most (1) to least (13) Energy consumption.
Kenya India Russia
Brazil China
UK Kuwait
Mexico Iraq
United States Germany
Australia Japan
Summary of your what you learned today:
Make 4 Generalizations about your learning today:
(not specific facts)
Making an inference about what you learned.
•Example: We use energy in many ways.
Law of Conservation of Energyor, Law of Thermodynamics
What do you think this means??
• Energy can be neither created nor destroyed, it can only be transferred
from one form to another.
• Anytime we use energy for any purpose it must be transformed from another source. like natural resources from the environment.
• We can always trace energy back to natural resources.
Energy
• Majority of the current energy supply from the US and other industrialized nations is derived from nonrenewable sources.
• Consumer use of energy necessitates converting energy from one form to another– Example:
• coal to electricity to light• Natural gas to heat to stove
Energy Transformations• Energy can be potential (stored) or kinetic
– Potential (stored) energy: energy that is stored in some way Brainpop: Potential energy
– Kinetic energy: energy of motion, involves movement of some kind
• Energy can be neither created nor destroyed, but it can be transformed.– Light bulbs convert electric energy to light
energy– Movement of our bodies converts chemical
energy to kinetic energy– School bell converts electric energy to sound
energy
Brainpop: Kinetic energy
Brainpop: Forms of energy
Energy: The capacity to do work or create change
• Motion Energy– The energy of an object
or substance in movement; kinetic energy
– Person dancing, car moving, thrown ball
• Gravitational Energy– The energy an object has
due to place or position, such as its height above the Earth; a form of potential energy
– Rock on the edge of a cliff, water behind a dam
• Electric Energy– The energy of electrons
(negatively charged particles) moving or flowing within a substance
– In power lines, from a battery
• Light Energy– The electromagnetic
energy that travels in waves; radiant energy
– Sunlight, light of a lamp or TV or computer monitor
Laws of Thermodynamics: Total amount of energy in the universe is constant. Energy can be neither created nor destroyed, but it can be transferred from one form to another.
• Heat Energy– The internal energy of a
substance due to random vibration & movement of atoms & molecules; thermal energy
– Heat from stove, grill, fire
• Sound Energy– The energy that moves
through substances (like air) by compression waves; sound
– Any kind of sound from a human, machine, animal
• Chemical Energy– The energy stored in
chemical bonds between atoms & molecules
– Photosynthesis in plants, eating food, coal, oil
• Nuclear Energy– The energy stored in the
nucleus of an atom; holds the atom together; atomic energy
– Uranium at a nuclear power plant; plutonium in a nuclear bomb
Thinking Time . . .
• Write the following Natural Resources in your spiral notebook.
• Beside each resource, write the percentage of electricity you think that particular resource generates in Arizona. Remember, it must add up to 100%!
1. Nuclear 4. Hydropower
2. Natural Gas 5. Petroleum
3. Coal 6. Solar, Bioenergy, Wind
Fill in the percentage for each natural resource on the Student Worksheet: Analyzing our Electricity
Video• Electricity: Making the Connection (15 min)
• Student Reading: Energy and Electricity
• Write 2 Facts/Main Ideas from the Video
Brainpop: Electricity
Brainpop: Current Electricity
Main Ideas• With your group – put together your
facts/Main Ideas from the video to come up with 3/4 different facts/Main Ideas (one for each person in your group)
• Put your initials next to the fact/Main Idea that you contributed.
• Put all your names/period # on this paper and turn it into the box.
• You have 5 minutes.
Energy & Electricity• Electric energy can be made from many other
forms of energy.
• Electromagnetism is a natural phenomenon in which electricity and magnetism affect each other.
• Most ways of making electricity rely on electromagnetism
• Most power plants make electricity with turbine generators (which rely on electromagnetism).
Task:
• 1. READ: In groups of twos; read page 9 in your packet – Energy and Electricity – each person reads 2 paragraphs – highlight important information.
• 2. ANSWER QUESTIONS: Complete the question sheet:
Energy and Electricity together – each person should have their own worksheet. Yes, write COMPLETE SENTENCES!
• 3. PICTURE & FLOW MAP: On the back of the question sheet, draw a picture of a Turbine Generator. Then create a Flow Map showing how a Turbine Generator works. You may work together, however, each person is to have their own Question Sheet/Generator Flow Map
Research and Map Making• What natural resources can be used to make
electricity?• What resources are used in Arizona?• You will work in one of seven teams to explore
electricity sources in Arizona:1. Coal2. Hydropower3. Wind Power4. Photovoltaic (solar)5. Bioenergy/ Landfill gas6. Natural Gas7. Nuclear
Materials needed• Student Handout: Map of Arizona• Student worksheet: Analyzing our electricity• Team Task Card• Follow the directions on each Team Task Card to
create a display poster and a mini-presentation for your group.
• Add to the Map the location of your energy sources. Be prepared to share with the class.
• You will have only 2 days in the computer lab to complete this assignment. You will be graded on whatever you complete in those 2 days.