wind and solar energy school/program name date. background information (for facilitator) wind...
TRANSCRIPT
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Wind and Solar Energy
School/program name Date
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Background Information(for facilitator)
• Wind Energy: As the sun heats Earth’s surface, it does so in an uneven way. Sunlight strikes the equatorial latitudes more directly than it does the polar latitudes, resulting in a higher concentration of energy per unit area. It also is absorbed and reflected at different rates, depending on the nature of the surface it strikes. This uneven heating results in areas of different pressure in the atmosphere, which causes wind. Humans have relied on wind energy for thousands of years—to help sail ships and grind grain, among other purposes. Modern wind turbines are used to convert the kinetic energy of the atmosphere and convert it into electrical energy, which can be transmitted via power lines or stored in batteries.
• Solar Energy: Solar energy consists of electromagnetic radiation emitted by the sun. Much of this
energy is in the infrared, ultraviolet, and visible wavelengths. Although Earth’s magnetic field and atmosphere block a large part of the sun’s radiation, enough solar energy strikes the US each day to supply all of our energy needs for approximately one and a half years!
• Solar energy is responsible for the existence of almost all life on Earth. As such, it is also the source of
the energy stored in fossil fuels. Solar energy also gives rise to wind energy, and together with gravity, produces hydroelectric energy. Solar energy can be harnessed by humans in two main ways—passive solar energy collection, and active solar energy collection. Passive solar energy collection involves using structures, positions, and material properties to take advantage of the sun’s energy. Active solar energy collection generally involves using photovoltaic cells to convert solar radiation directly into an electric current.
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AgendaOpening (30 minutes)
Setting the Stage: The Power Of Wind (20 minutes)
Cyber Investigation: 3M Wind Energy Virtual Lab? (25 minutes)
Activity: Siemens Science Day: Blowin’ In The Wind (60 minutes)
Break (15 minutes)
Setting the Stage: The Power of the Sun (30 minutes)
Lunch (30 minutes)
Recess: Rainbow Tag (30 minutes)
Activity: The Abundance of Solar Energy (20 minutes)
STEM-tastic Careers (15 minutes)
Engineering Challenge: Siemens Science Day Lab: You’re Getting Warmer…
(60 minutes)
Mind Snacks (15 minutes)
STEM Camp Notebook Reflection (10 minutes)
Wrap Up (5 minutes)
Dive Into Digital Project (60 minutes)
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Learning Objectives To demonstrate how wind turbines are used to
generate electricity
To relate the advantages and disadvantages of
wind energy
To differentiate between active and passive solar
energy
To relate the advantages and disadvantages of
solar energy
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Today’s Vocabulary
Wind Energy
Solar Energy
Renewable Energy
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Setting the Stage:The Power of Wind
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What Are Fossil Fuels?
Video: Wind Power
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Activity: Siemens Science Day: BLOWIN’ IN THE WIND
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Setting the Stage: The Power of the Sun
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How is Food related to Solar Energy?
Video: Solar Power
Video: Lights Has Energy
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Activity: The Abundance of Solar Energy
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Video: Measuring Solar Energy
Video: Solar Power without the Sun
What factors affect the
abundance of solar energy?
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STEMtastic Careers
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Heather Dohan, Wind Scientist
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What are some of the similarities and differences
between the work that wind energy engineers do
and the work that other types of engineers do?
What types of skills must a wind engineer have?
How does the work that wind engineers do
impact society and the environment?
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Engineering Challenge: Siemens Science Day Lab:
YOU’RE GETTING WARMER…
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Mind Snacks
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Notebook Reflection Would the area in which you live be a good place
for a wind farm?
What are the advantages and disadvantages of
using wind energy?
What are some ways you can take advantage of
passive solar energy in your home or school?
What are some ways you can take advantage of
active solar energy in your home or school?
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Wrap Up
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Think about this…
What conditions are necessary for
generating hydroelectric energy?
What conditions are necessary for
generating geothermal energy?