Interactive Video Script Template
Lesson
Objective
Course
Semester
Unit
Lesson
Science 8
A
3
10
Students will describe the purpose, function, and importance of the
seismograph.
CLIP A (Introduction)
Visual
<image>
Audio
Energy travels through the layers of Earth
in the form of seismic waves. They are
usually created by earthquakes.
http://commons.wikimedia.org/wiki/File:Ro
addamage59quake.JPG
<image>
P-waves are compressional waves. They
move very quickly, in only one direction.
Usually we do not feel these waves.
http://pixabay.com/en/family-homeresidence-contemporary-475883/
<image>
http://commons.wikimedia.org/wiki/File:FE
MA_-_3027__Photograph_by_Andrea_Booher_taken_
on_01-17-1994_in_California.jpg
S-waves travel up and down as well as
away from the focus of an earthquake.
They are slower and more damaging.
<image>
The damage associated with earthquakes
is from S-waves. They change the shape
of the Earth’s surface.
http://pixabay.com/en/earthquake-buildingdestruction-203058/
<image>
Seismic waves are associated with other
types of natural disasters as well. They
often come before volcanic eruptions…
http://pixabay.com/en/sicily-strombolivolcano-erupts-177871/
<image>
…and cause destructive tsunamis. These
giant waves form when an earthquake
occurs under the ocean.
http://mrg.bz/8bhyw7
<image>
Seismic waves travel throughout the
Earth. Scientists have used them to study
the composition of the Earth’s interior.
http://pixabay.com/en/earth-blue-planetglobe-planet-11015/
<image>
http://commons.wikimedia.org/wiki/File:Sei
smographLomaPreitaQuakeSeismologistS
mile.jpg
The seismograph is the tool used to
measure these waves. Because these
waves come before some disasters, being
able to predict them is very important.
Question A
Stem: What does a seismograph measure?
Answer Choices:
A. Water waves
B. Electromagnetic waves
C. Seismic waves
D. Sound waves
Correct Response (C)
(Video progresses to clip B)
Incorrect Response (other responses)
(Video progresses to clip E)
CLIP B (DOK1)
Visual
<image>
Audio
Earthquake waves travel in all directions
from the focus. The focus is directly below
a point called the epicenter.
http://commons.wikimedia.org/wiki/File:Ear
thquake_damage_in_Jacmel_2010-0117_7.jpg
<image>
The P-waves travel faster and arrive first.
S-waves arrive later. Each wave travels at
a specific speed.
http://pixabay.com/en/tashkentmonument-earthquake-196501/
<image>
Using this information, seismologists can
determine how far away they are from the
earthquake’s origin.
http://commons.wikimedia.org/wiki/File:Ca
pitol_Reef_National_Park_CARE4486.jpg
<image>
http://pixabay.com/en/earth-globeatmosphere-clouds-sky-11084/
P and S wave data can be collected all
over the Earth. It helps us understand
earthquakes, volcanoes, and Earth’s
interior.
Question B
Stem: What information can a seismologist determine by comparing the arrival time of P
and S waves on a seismograph?
Answer Choices:
A. Distance from the earthquake’s origin.
B. How much damage an earthquake will cause.
C. How long before the next earthquake.
D. How many earthquakes have occurred in that area.
Correct Response (A)
(Video progresses to clip C)
Incorrect Response (other responses)
(Video progresses to clip F)
CLIP C (Increased DOK2)
Visual
<image>
Audio
Modern seismographs function by tracking
the movement of a magnet within a small
case.
http://gallery.usgs.gov/images/02_24_201
0/c28Ja44Yyt_02_24_2010/large/Haiti_Ja
n_2010_3_512.jpg
<image>
Traditional seismographs recorded
vibrations using a hanging weight on a
spring or a pendulum.
http://commons.wikimedia.org/wiki/File:Ca
mbridge_Instrument_Company_seismogra
ph__National_Museum_of_Nature_and_Scien
ce,_Tokyo_-_DSC07170.JPG
<image>
http://commons.wikimed
ia.org/wiki/File:Seismometer_at_Lick_Obs
ervatory.JPG
Traditional seismographs also recorded
the waves on a rotating wheel.
Today’s seismographs record data
electronically. There is even a
seismograph app for your smartphone!
<image>
http://commons.wikimedia.org/wiki/File:U.
S._Air_Force_Senior_Airman_Craig_Fox,
_a_hydraulics_technician_with_the_726th
_Air_Mobility_Squadron,_references_a_te
chnical_order_on_his_laptop_computer_b
efore_working_on_a_C17_Globemaster_III_aircraft_130115-FVI983-095.jpg
Question C
Stem: How do modern seismographs detect earthquake waves?
Answer Choices:
A. With a pendulum.
B. With a weight on a spring.
C. With an electromagnet.
D. With a rolling wheel.
Correct Response (C)
(Video progresses to clip D)
Incorrect Response (other responses)
(Video progresses to clip G)
CLIP D (Increased DOK3)
Visual
Audio
<image>
Measuring and monitoring seismic waves
is important. Detection of these waves
can warn us of impending danger.
http://gallery.usgs.gov/photos/04_07_2010
_pul8OBa44H_04_07_2010_3#.VMQFUC
48onB
<image>
P-wave warning systems can alert a
community and emergency responders of
an impending earthquake.
http://commons.wikimedia.org/wiki/File:Le
ytonstone_Fire_Station.jpg
<image>
Monitoring the seismic wave patterns from
moving tectonic plates under the ocean
can be used to predict tsunamis.
http://mrg.bz/Eojz2N
<image>
Understanding the seismic wave patterns
at a volcano can help scientists predict
eruptions. This information can help us be
prepared and save lives.
http://gallery.usgs.gov/photos/03_29_2013
_otk7Nay4LH_03_29_2013_4#.VMQFzy4
8onB
Question D
Stem: What can’t a seismograph provide useful information about?
Answer Choices:
A. Earthquakes
B. Tornadoes
C. Volcanoes
D. Tsunamis
Correct Response (B)
(Video progresses to Success Alert)
Incorrect Response (other responses)
(Video progresses to clip H)
CLIP E (Remedial 1)
Visual
<image>
Audio
Energy can travel through Earth’s interior
in the form of seismic waves. Hard to
detect P-waves move only in one
direction.
http://commons.wikimedia.org/wiki/File:US
_Navy_100121-N-6410J369_A_statue_at_the_Haitian_presidential
_palace_lays_in_pieces_after_the_Caribb
ean_nation_sustained_a_7.0_earthquake
_on_Jan._12,_2010_tha.jpg
<image>
S-waves are often easily felt, because
they move up and down as well as away
from the focus of an earthquake.
http://commons.wikimedia.org/wiki/File:Gu
atemala1976Earthquake14ct.jpg
<images side by side>
http://pixabay.com/en/mount-st-helensvolcanic-eruption-164848/
<image>
http://commons.wikimedia.org/wiki/File:US
_Navy_110318-M-HU778007_An_aerial_view_of_Minato,_Japan,_a
_week_after_a_9.0_magnitude_earthquak
e_and_subsequent_tsunami_devastated_t
he_area.jpg
Seismic waves are also associated with
natural occurrences like tsunamis and
volcanic eruptions.
<image>
Development of the seismograph has
allowed us to better understand these
phenomena by recording seismic waves.
http://commons.wikimedia.org/wiki/File:Sei
smograph__National_Museum_of_Nature_and_Scien
ce,_Tokyo_-_DSC07172.JPG
Question E
Stem: Seismic waves are associated with ___________________.
Answer Choices:
A. Earthquakes
B. Tsunamis
C. Volcanic eruptions
D. All of the above
Correct Response (D)
(Video progresses to clip B)
Incorrect Response (other responses)
(Video progresses to clip F)
CLIP F (Remedial 2)
Visual
<image>
Audio
Seismographs measure vibrations at the
Earth’s surface. During an earthquake Pwaves arrive first, S-waves second.
http://commons.wikimedia.org/wiki/File:IS
S30_East_African_Rift_Valley_in_Kenya.jp
g
<image>
These waves travel in all directions from
the focus of the earthquake, similar to
ripples moving outward from a water drop.
http://pixabay.com/en/drop-of-water-wavewet-circle-285398/
<image>
The difference in the arrival time between
the P and S waves can be used to tell how
far away the focus of an earthquake is.
http://commons.wikimedia.org/wiki/File:Sa
n_Francisco_STS058-083-023.jpg
<image>
http://commons.wikimedia.org/wiki/File:Ear
thquakeFreewayCa1989.jpg
The seismograph is the key tool in
understanding how and why these waves
are produced.
Question F
Stem: Which type of earthquake waves arrive first?
Answer Choices:
A. Tsunami waves
B. Surface waves
C. S-waves
D. P-waves
Correct Response (D)
(Video progresses to clip C)
Incorrect Response (other responses)
(Video progresses to Intervention Alert,
bringing students back to clip B)
CLIP G (Remedial 3)
Visual
<image>
Audio
Older versions of seismographs
functioned using a pendulum or a springweight system.
http://commons.wikimedia.org/wiki/File:Sei
smograph_recording__National_Museum_of_Nature_and_Scien
ce,_Tokyo_-_DSC07165.JPG
<image>
Newer versions are smaller and use an
electromagnet to detect vibrations.
http://commons.wikimedia.org/wiki/File:CU
SP_unit_located_in_a_basement.JPG
<image>
Older versions of seismographs collected
data on large rolls of paper.
http://commons.wikimedia.org/wiki/File:S7
2-54999.jpg
<image>
http://commons.wikimedia.org/wiki/File:US
_Navy_111026-N-ZZ447003_Hull_Technician_1st_Class_Nolan_R
._Nichols_answers_a_question_on_the_c
omputer-based_training_system.jpg
Today’s seismographs collect data
electronically. This makes it easier to
share data with others.
Question G
Stem: What two types of mechanisms did old style seismographs use to detect seismic
waves?
Answer Choices:
a. Pendulums and weight-spring systems.
b. Weight-spring systems and pulleys.
c. Pulleys and pendulums.
d. Pendulums and radioactive isotopes.
Correct Response (A)
(Video progresses to clip D)
Incorrect Response (other responses)
(Video progresses to clip F)
CLIP H (Remedial 4)
Visual
<image>
Audio
Seismic waves are associated with
tsunamis, earthquakes, and volcanic
eruptions.
http://commons.wikimedia.org/wiki/File:19
85_Mexico_Earthquake__Pina_Suarez_Apartment_Complex.jpg
<image>
Monitoring these waves can help alert
emergency responders before an
emergency happens.
http://commons.wikimedia.org/wiki/File:US
_Navy_110223-N-WP746003_Wallace_Mason,_assistant_chief_of_
the_Commander,_Navy_Region_Hawaii_
Federal_Fire_Department,_monitors_a_S
olid_Curtain-Ci.jpg
<image>
Early alert systems give them a head start
in preparing their response.
http://pixabay.com/en/fire-truck-vehiclerescue-472828/
<image>
http://commons.wikimedia.org/wiki/File:19
85_Mexico_Earthquake__Ministry_of_Telecommunications_and_Tr
ansportation_building_3.jpg
In an emergency situation a few minutes
can be the difference between life and
death.
Question H
Stem: How are seismographs useful for emergency responders?
Answer Choices:
A. They provide an early warning system.
B. They help maintain equipment.
C. They help detect fires.
D. They locate victims if a building collapses.
Correct Response (A)
(Video progresses to Success Alert)
Incorrect Response (other responses)
(Video progresses to clip G)