#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

QOD: Little Tommy wants to dig a tunnel all the way to China. Why can’t

he?

Geothermal energy

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

What is geothermal energy?

Use a computer to find out…1. Google “geothermal energy”2. Find out and write down at least 8 facts

OR

1. Go to New York Times 2. Find and summarize an article about geothermalenergy

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

Share: What is geothermal energy?

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

#3.24 Aim: How is geothermal energy

harnessed?

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

Geothermal energycomes from the heat in earth’s core

Heat rises through natural cracks and warms groundwater.

Evidence of hot spots!

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

How do geothermal plants produce electricity?

1. Magma heats groundwater

2. …which turns into steam

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

How do geothermal plants produce electricity?

3. Steam turns turbine, electricity is produced!

4. Steam is cooled back into water and returned to the groundwater

Geothermal energy can also be used for heat!

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

Geothermal facts:

Provides <0.5% of total energy use world-wide

In the U.S. we have enough to power 1.4 million homes

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

Pro’s1. Renewable (mostly) 2. Few greenhouse gases emitted

1 megawatt of electricity produced at a geothermal plant prevents the emission of 7.8 million pounds of carbon dioxide from gas-fired plants

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

Con’s1. Not all geothermal power plants are sustainable

At the geyers in Napa Valley, CA the plant uses hot water faster than the groundwater can heat it up again.

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

Con’s2. Can only be harnessed in certain areas

Think back to earth science… do you think these spots will ALWAYS be good locations for harnessing geothermal energy?

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

HW #30Pro’s and con’s of geothermal

energy

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30

#3.24 Aim:

How is geothermal

energy harnessed?

AgendaQOD (5)

Activity:What is

geothermal energy?

(15)

Lesson: Geotherma

l energy (15)

Summary: pass-back

quizzes

HW #30