How does light differ? Light Source Color Pattern seen in spectroscope Red Light Bulb Daylight Light...
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How does light differ? Light Source Color Pattern seen in spectroscope Red Light Bulb Daylight Light Bulb Fluorescent Light Bright Sky DO NOT look directly
How does light differ? Light Source Color Pattern seen in
spectroscope Red Light Bulb Daylight Light Bulb Fluorescent Light
Bright Sky DO NOT look directly at the sun. How did the colors in
each light source differ? Explore how the spectroscope might be
used to learn about stars. How does light differ? Light Source
Color Pattern seen in spectroscope Red Light Bulb Daylight Light
Bulb Fluorescent Light Bright Sky DO NOT look directly at the sun.
How did the colors in each light source differ? Explore how the
spectroscope might be used to learn about stars.
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The Big Bang by ______________.
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The Big Bang Read lesson 7.4 in your textbook. Then write 300
words on the topic.. _________________________
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Radio Waves Size: Radio waves range from the size of a water
bottle to the diameter of the Earth Source Neutron Stars Radio
Tower Detection Radio Satellite
Slide 6
Microwaves Size millimeter wavelengths Sources Human Signals
UHF TV Big Bang Cosmic Background Radiation Sun Supermassive Black
Holes Detection Remote Sensing and Weather Simulated microwave
release from supermassive blackhole Cosmic Background Radiation
from the Big Bang
Slide 7
Infrared Radiation (IR) Source Heat From sun Re-radiation of
Heat Warming effect on Earth Detection Spitzer Space Telescope
Weather Radars Pit Vipers Infrared Cat The image on the left shows
an optical view of a star forming region. The same area is shown on
the right in infrared radiation. Notice how the infrared
observations penetrate the obscuring cloud to reveal many new
details.
Slide 8
Visible Light Source Sun and Lightbulbs Detection Telescope on
the roof of RLM Building at UT McDonald Observatory Hubble Space
Telescope Photo of Saturn from telescope on top of RLM at UT Hubble
and Hubble photo of Jupiter
Slide 9
Ultraviolet (UV) Source Stars (Produces sunburns and makes
vitamin D) Ozone blocks UV radiation Black Lights and Electric Arcs
Detection Insects NASA's Extreme Ultraviolet Explorer
satellite
Slide 10
X-Rays Source Stars Neutron stars and from object being pulled
into a black hole Detection Chandra X-Ray Observatory Auroras of
Jupiter Picture used overlain images from Chandra and Hubble
Slide 11
Gamma Radiation Size Wavelengths are smaller than an atom
Source Supernovas Produced on Earth from Radioactive Decay and
Lightning Detection Fermi Gamma Ray Space Telescope Fermi Gamma Ray
Space Telescope
Slide 12
Astronomy Unit 3: Big Bang and Electromagnetic Radiation
Slide 13
Electromagnetic Radiation and the Big Bang Astronomy Unit 3
Electromagnetic Spectrum How we know what stars are made of. The
Big Bang Inflation of the Universe 13.7 Billion Years ago
Slide 14
Vocabulary electromagnetic radiation: a form of energy that
travels through space as waves; called EM radiation for short
electromagnetic spectrum: the variety of forms of EM radiation,
such as radio waves, microwaves, visible light, and X-rays optical
telescope: an instrument that uses light and lenses to study
distant objects radio telescope: an instrument that collects and
analyzes radio waves from stars and other objects in space
observatory: a building or room that houses one or more
telescopes
Slide 15
Unit 3 Vocabulary electromagnetic radiation: a form of energy
that travels through space as waves; called EM radiation for short
electromagnetic spectrum: the variety of forms of EM radiation,
such as radio waves, microwaves, visible light, and X-rays optical
telescope: an instrument that uses light and lenses to study
distant objects radio telescope: an instrument that collects and
analyzes radio waves from stars and other objects in space
observatory: a building or room that houses one or more telescopes
electromagnetic radiation: a form of energy that travels through
space as waves; called EM radiation for short electromagnetic
spectrum: the variety of forms of EM radiation, such as radio
waves, microwaves, visible light, and X-rays optical telescope: an
instrument that uses light and lenses to study distant objects
radio telescope: an instrument that collects and analyzes radio
waves from stars and other objects in space observatory: a building
or room that houses one or more telescopes Unit 3 Vocabulary
electromagnetic radiation: a form of energy that travels through
space as waves; called EM radiation for short electromagnetic
spectrum: the variety of forms of EM radiation, such as radio
waves, microwaves, visible light, and X-rays optical telescope: an
instrument that uses light and lenses to study distant objects
radio telescope: an instrument that collects and analyzes radio
waves from stars and other objects in space observatory: a building
or room that houses one or more telescopes electromagnetic
radiation: a form of energy that travels through space as waves;
called EM radiation for short electromagnetic spectrum: the variety
of forms of EM radiation, such as radio waves, microwaves, visible
light, and X-rays optical telescope: an instrument that uses light
and lenses to study distant objects radio telescope: an instrument
that collects and analyzes radio waves from stars and other objects
in space observatory: a building or room that houses one or more
telescopes Unit 3 Vocabulary
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X-Ray Gamma Ultraviolet Visible Infrared Microwaves Radio Glue
Here Remember only 8 dots of glue! Fold here
Slide 19
Electromagnetic Radiation
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Electromagnetic Spectrum electromagnetic radiation: a form of
energy that travels through space as waves; called EM radiation for
short electromagnetic spectrum: the variety of forms of EM
radiation, such as radio waves, microwaves, visible light, and
X-rays
Slide 21
Electromagnetic Spectrum
Slide 22
Austins Radio Towers on Mount Larsen
Slide 23
Concepts Regarding Electromagnetic Spectrum Electromagnetic
(EM) radiation is a form of energy that can travel through space.
The different forms of EM radiation make up the electromagnetic
spectrum. Light, radio waves, microwaves, and X-rays are all forms
of EM radiation. Each form of EM radiation has a certain range of
wavelengths and frequencies. All forms travel through space at the
same speed, which is 3.0 10 8 meters per second. This value is
called the speed of light. Stars and other objects of the universe
give off visible light and other forms of EM radiation. The eyes
and optical telescopes can detect the light that they give off.
Other telescopes have been built to detect radio waves, microwaves,
and X-rays from space. To reach Earths surface, EM radiation from
space must pass through Earths atmosphere. The atmosphere distorts
or blocks some of the radiation. This limits the usefulness of
Earth-bound telescopes. Other telescopes, such as the Hubble Space
Telescope, are aboard satellites. These telescopes can detect EM
radiation from space very clearly. They produce very detailed,
highly magnified images of objects in space. Scientists study the
data from telescopes. This lets them learn about the distances and
physical properties of stars and other components of the
universe.
Slide 24
Telescopes and their Wavelengths Video: Wavelenths and
Fermi
Slide 25
All EM Radiation Travels at the speed of light. Each form of EM
radiation has a certain range of wavelengths and frequencies. All
forms travel through space at the same speed, which is 3.0 10 8
meters per second. This value is called the speed of light.
Slide 26
Electromagnetic Radiation meets the Earths Atmosphere Which
type of EM radiation reaches the earths surface? Ultraviolet
Visible Infrared Radio
Slide 27
What types of Electromagnetic radiation reach the Earths
Surface? 1. 2. 3. 4. Electromagnetic Radiation What types of
Electromagnetic radiation reach the Earths Surface? 1. 2. 3. 4.
Electromagnetic Radiation
Slide 28
How do we know what we know about the Universe? We know what we
know because these inventions. Collect this data. Which is
interpreted by these scientist.
Slide 29
Importance of Electromagnetic Radiation Astronomical Images in
Different Wavelengths Electromagnetic Radiation provides the data
that scientist use to understand the distances and physical
properties of stars and other components of the universe. Scientist
use telescopes to detect electromagnetic radiation from space. To
reach Earths surface, EM radiation from space must pass through
Earths atmosphere. The atmosphere distorts or blocks some of the
radiation. This limits the usefulness of Earth-bound
telescopes.
Slide 30
Images using different wavelengths Astronomical Images in
Different Wavelengths
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Quarter 1 Review Stations Station2 sentences about what you
learned Stamp Ballooniverse EM Spectrum Wavestown Newtonss laws
Moon Phases and Why does the moon change shape? The Reason for the
Seasons Station2 sentences about what you learned Stamp
Ballooniverse EM Spectrum Wavestown Newtonss laws Moon Phases The
Reason for the Seasons Quarter 1 Review Stations
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Astronomy Unit Reflection What I learnedHow I learned it What I
learnedHow I learned it Astronomy Unit Reflection
Slide 34
The Reason for the Seasons The reason we have seasons is that,
as the Earth revolves around the sun it is closer to the sun in the
summertime; therefore, it is warmed in summer and cooler in winter.
1.Why do you think some people have this idea about the reason for
the season? 2.What thinks could you do to help someone understand
the scientific explanation for seasons? How would this help someone
give up his or her original idea in favor of the scientific one?
3.Did you ever have similar Missed Conception at the beginning of
this unit or sometime in your life? How and/or why has your
thinking changed or not changed? 4.Draw the Earth during all 4
seasons. Label the seasons in the Northern and Southern Hemisphere.
The Reason for the Seasons The reason we have seasons is that, as
the Earth revolves around the sun it is closer to the sun in the
summertime; therefore, it is warmed in summer and cooler in winter.
1.Why do you think some people have this idea about the reason for
the season? 2.What thinks could you do to help someone understand
the scientific explanation for seasons? How would this help someone
give up his or her original idea in favor of the scientific one?
3.Did you ever have similar Missed Conception at the beginning of
this unit or sometime in your life? How and/or why has your
thinking changed or not changed? 4.Draw the Earth during all 4
seasons. Label the seasons in the Northern and Southern
Hemisphere.
Slide 35
Moon Phases
Slide 36
View from Earth Now draw in the correct view from the Earth for
each phase using the right picture from the box. Use the diagram to
explain why the Moon changes shape. Join the number to the correct
name for the phase. PhaseName 1Waning crescent 2 Full moon 3 First
quarter 4New moon 5Waning gibbous 6Waxing crescent 7Last quarter
8Waxing gibbous Why does the Moon change shape? 1 2 3 4 5 6 7 8 7 8
1 2 3 4 5 6 www.snapshotscience.co.uk, 2010 1 2 3 4 5 6 7 8 7 8 1 2
3 4 5 6 Shade in the parts of the moon that will get no light from
the Sun in this diagram. The first one is done for you. Now draw in
the correct view from the Earth for each phase using the right
picture from the box. Use the diagram to explain why the Moon
changes shape. Join the number to the correct name for the phase.
PhaseName 1Waning crescent 2 Full moon 3 First quarter 4New moon
5Waning gibbous 6Waxing crescent 7Last quarter 8Waxing gibbous
www.snapshotscience.co.uk, 2010 Why does the Moon change shape?
Shade in the parts of the moon that will get no light from the Sun
in this diagram. The first one is done for you.
Slide 37
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Electromagnetic Spectrum 1.What are the 6 different types of
electromagnetic radiation? 2.What makes them different from one
another? 3.Which type of EM radiation has the longest wavelength?
4.Which type of EM radiation has the shortest wavelength? 5.What
type of radiation do supernovas produce? 6.What type of radiation
do Black holes produce? 7.What type of EM radiation is a rainbow?
8.What are the colors of visible light? 9.What types of EM
radiation penetrate the Earths atmosphere? 10.What type of EM
radiation do the following satellites receive? FERMI CHANDRA HUBBLE
11.Tell me 3 interesting things about Electromagnetic Radiation.
1.What are the 6 different types of electromagnetic radiation?
2.What makes them different from one another? 3.Which type of EM
radiation has the longest wavelength? 4.Which type of EM radiation
has the shortest wavelength? 5.What type of radiation do supernovas
produce? 6.What type of radiation do Black holes produce? 7.What
type of EM radiation is a rainbow? 8.What are the colors of visible
light? 9.What types of EM radiation penetrate the Earths
atmosphere? 10.What type of EM radiation do the following
satellites receive? FERMI CHANDRA HUBBLE 11.Tell me 3 interesting
things about Electromagnetic Radiation. Electromagnetic
Spectrum
Slide 39
Ballooniverse Purpose: to create a model that illustrates how
the universe expands Materials: balloon marker tape measure (or
string & ruler) Procedures: 1. Inflate your balloon until it is
about 4 inches (10 cm) in diameter, but do not tie the end. 2.
Using the marker, make six dots on the balloon in widely scattered
locations. Label one dot "home" and the others A-E. The home dot
represents the Milky Way galaxy, and the others represent galaxies
formed in the early universe. 3. Without letting air out of the
balloon, use the tape measure (or string & ruler) to measure
the distance from home to each dot. Record the distances in the
table under the heading "Measurement 1." 4. Using your tape measure
(or string & ruler), determine the circumference of the
balloon. Record the circumference in the table under the heading
Measurement 1. 5. Inflate the balloon so that its diameter is about
4 inches (10 cm) bigger ( 20 cm). Make a prediction about the new
distances from home to dots A-E. Adapted from:
http://school.discoveryeducation.com/curriculumcenter/universe/activity2.html
Slide 40
Ballooniverse Conclusion/Questions: Illustrate the changes of
your ballon below. 1.How did the distance from the home dot to each
of the other galaxies change each time you inflated the balloon? 2.
Did the galaxies near home or those farther away appear to move the
greatest distance? 3. How could you use this model to simulate the
Big Crunch, a time when all the galaxies might collapse in on
themselves? Ballooniverse
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Wavestown Answer Key 1. Radio Waves Rays TV - TV reception uses
radio waves Satellite Dish at Rays TV - receives movies via radio
waves from a satellite Taxi - Car radio receives radio wave signals
Taxi - Driver receives instructions on a CB radio which uses radio
waves Radio Tower - broadcasts radio signals Large Satellite dish
in field - receives radio waves from distant stars 2. Microwaves
Microwave in Waves Grill - uses microwaves to cook food Disk-like
antennas on tower - send microwave communications 3. Infrared Heat
lamps above food in Waves Grill - use infrared waves to keep food
hot Rays TV - Remote controls use infrared waves to communicate
with the TV Trees, bushes, grass, and farm - vegetation reflects
short infrared waves Observatory - astronomers study thermal
infrared (long infrared waves) from stars 4. Visible Light Rainbow
- water droplets cause white light to break apart into the colors
of the rainbow Photographers studio - portrait photographers use
film sensitive to visible light Observatory - astronomers look at
visible light from planets and stars 5. Ultraviolet Tanning Salon -
use ultraviolet waves to tan our skin sunglasses store - sunglasses
protect our eyes from the ultraviolet waves Suntan lotion -
protects our skin from ultraviolet waves Observatory - astronomers
see some ultraviolet radiation from planets and stars 6. X-rays
Dr.Bobs Health Clinic - uses x-rays to study our bones High energy
x-rays are also used to treat cancer 7. Gamma Rays Dr.Bobs Health
Clinic - gamma radiation is used to kill sick cells through nuclear
medicine Gamma radiation is given off by nuclear explosions that
occur within stars, like our sun.
Slide 43
Wavestown Introduction to the Electromagnetic Spectrum
Directions: Use the descriptions below to help locate examples of
electromagnetic waves in the Wavestown picture. Radio waves have
the longest wavelength in the electromagnetic spectrum. These waves
carry the news, ball games, and music you listen to on the radio.
They also carry signals to television sets and cellular phones.
Microwaves have shorter wavelengths than radio waves, which heat
the food we eat. They are also used for radar images, like the
Doppler radar used in weather forecasts. There are infrared waves
with long wavelengths and short wavelengths. Infrared waves with
long wavelengths are different from infrared waves with short
wavelengths. Infrared waves with long wavelengths can be detected
as heat. Your radiator or heater gives off these long infrared
waves. We call these thermal infrared or far infrared waves. The
sun gives off infrared waves with shorter wavelengths. Plants
reflect these waves, also known as near infrared waves. Visible
light waves are the only electromagnetic waves we can see. We see
these waves as the colors of the rainbow. Each color has a
different wavelength. Red has the longest wavelength and violet has
the shortest wavelength. These waves combine to make white light.
Ultraviolet waves have wavelengths shorter than visible light
waves. These waves are invisible to the human eye, but some insects
can see them. Of the sun's light, the ultraviolet waves are
responsible for causing our sunburns. X-Rays: As wavelengths get
smaller, the waves have more energy. X-Rays have smaller
wavelengths and therefore more energy than the ultraviolet waves.
X-Rays are so powerful that they pass easily through the skin
allowing doctors to look at our bones. Gamma Rays have the smallest
wavelength and the most energy of the waves in the electromagnetic
spectrum. These waves are generated by radioactive atoms and in
nuclear explosions. Gamma rays can kill living cells, but doctors
can use gamma rays to kill diseased cells.
Slide 44
Wavestown Waves
Slide 45
Newtons Laws 1. A magician pulls a tablecloth out from under
dishes and glasses on a table without disturbing them. 2. A tire is
thrown outward as a car rounds a curve on a highway. 3. Rockets are
launched into space using jet propulsion where exhaust accelerates
out from the rocket and the rocket accelerates in an opposite
direction. 4. A picture is hanging on a wall and does not move. 5.
Pushing a child on a swing is easier than pushing an adult on the
same swing, because the adult has more inertia. 6.A soccer ball
accelerates more than a bowling ball when thrown with the same
force. 7.A soccer player kicks a ball with their foot and their
toes are left stinging. 8.A student leaves a pencil on a desk and
the pencil stays in the same spot until another student picks it
up. 9.Two students are in a baseball game. The first student hits a
ball very hard and it has a greater acceleration than the second
student who bunts the ball lightly. 10.For each of Newtons Laws
write a hastag. Pick the best of each of the laws from your table
group, write then on a post it note and place it in the designated
location. Newtons 1 st Law - # Newtons 2 nd Law - # Newtons 3 rd
Law - # Newtons Laws 1. A magician pulls a tablecloth out from
under dishes and glasses on a table without disturbing them. 2. A
tire is thrown outward as a car rounds a curve on a highway. 3.
Rockets are launched into space using jet propulsion where exhaust
accelerates out from the rocket and the rocket accelerates in an
opposite direction. 4. A picture is hanging on a wall and does not
move. 5. Pushing a child on a swing is easier than pushing an adult
on the same swing, because the adult has more inertia. 6.A soccer
ball accelerates more than a bowling ball when thrown with the same
force. 7.A soccer player kicks a ball with their foot and their
toes are left stinging. 8.A student leaves a pencil on a desk and
the pencil stays in the same spot until another student picks it
up. 9.Two students are in a baseball game. The first student hits a
ball very hard and it has a greater acceleration than the second
student who bunts the ball lightly. 10.For each of Newtons Laws
write a hastag. Pick the best of each of the laws from your table
group, write then on a post it note and place it in the designated
location. Newtons 1 st Law - # Newtons 2 nd Law - # Newtons 3 rd
Law - #