Title: axis
1axis
- Axis of rotation, line around which an object
rotates Axis of symmetry, a line that divides a
two-dimensional objec
2Orbit
- the curved path, usually elliptical, described by
a planet, satellite, spaceship, etc., around a
celestial body, as the sun.
3orbit
- The path of a celestial body or an artificial
satellite as it revolves around another body.
4rotation
- a circular movement of an object around a center
5revolution
- It takes the Earth 365.25 days to go around the
Sun. This is referred to as a revolution, and,
combined with the tilt of the Earth on its axis,
is what causes seasons
6tilt
- The tilt of the earth at 23.45
7season
- 1. one of the four periods of the year (spring,
summer, autumn, and winter), beginning
astronomically at an equinox or solstice,
8equator
- the Equator is an imaginary line on the Earth's
surface equidistant from the North Pole and South
Pole that divides the Earth into a Northern
Hemisphere and a Southern Hemisphere. The
latitude of the Equator is 0 (zero degrees). The
length of Earth's equator is about
40,008.629 kilometres (24,860.2 mi)
9hemispheres
- The earth is traditionally described in relation
to its two halves or hemispheres, North and South
of the Equator, an imaginary line circling the
earth midway between its two poles.
10solstice
- an astronomical event that happens twice each
year when the Sun's apparent position in the sky
reaches its northernmost or southernmost extreme
11equinox
- occurs twice a year, when the tilt of the Earth's
axis is inclined neither away from nor towards
the Sun
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13Aurora
- is a natural light display in the sky,
particularly in the polar regions, caused by the
collision of charged particles directed by the
Earth's magnetic field. An aurora is usually
observed at night and typically occurs in the
ionosphere. It is also referred to as a polar
aurora or, collectively, as polar lights
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16Satellite
- a device designed to be launched into orbit
around the earth, another planet, the sun, etc to
find information on the thing it is orbiting or
send radio rays for cable, radio, GPS, etc
17satelite
- an object which has been placed into orbit by
human endeavor. Such objects are sometimes called
artificial satellites
18Space Station
- A large satellite equipped to support a human
crew and designed to remain in orbit around Earth
for an extended period and serve as a base for
launching exploratory expeditions, conducting
research, repairing satellites, and performing
other space-related activities.
19Meteorites
- A stony or metallic mass of matter that has
fallen to the earth's surface from outer space.
20Asteroids
- Any of numerous small celestial bodies that
revolve around the sun, with orbits lying chiefly
between Mars and Jupiter and characteristic
diameters between a few and several hundred
kilometers.
21Moon(do you see the face on the moon called the
man on the moon)
- The natural satellite of Earth, visible by
reflection of sunlight and having a slightly
elliptical orbit, approximately 356,000
kilometers (221,600 miles) distant at perigee and
406,997 kilometers (252,950 miles) at apogee.
22Rotation
- the act of rotating a turning around as on an
axis.
23Total Solar Eclipse
- A Total Solar Eclipse occurs when the new Moon
passes directly between the Sun and the Earth.
Daytime briefly turns to an eerie darkness, and
during these few precious minutes the wispy halo
of the Suns corona, comes into view as the dark
disk of the Moon totally obscures the bright Sun.
http//co-ops.nos.noaa.gov/astronomical.shtml
24Solar Eclipse
- When the moons shadow falls on the sun.
25Total Lunar Eclipse
- A total Lunar Eclipse occurs when the full Moon
passes through the shadow of the Earth. In this
case, the Sun and the Moon are on opposite sides
of the Earth. A lunar eclipse is only visible at
night time of certain full Moons. A lunar
eclipse can last as long as an hour.
http//co-ops.nos.noaa.gov/astronomical.shtm
26Lunar Eclipse
- When the suns shadow falls on the moon.
27Eclipse of the Moon
- Lunar Eclipse is when the Earths shadow falls
upon the moon. - Solar Eclipse is when the Moons shadow falls
upon the Earth. - An eclipse occurs at those times when the Moon
moves into a position of direct alignment with
the Sun and the Earth.
28Space Race
- the competitive nature of the nations involved in
space exploration
29Neal Armstrong
- In 1969, Neil Armstrong was commander of Apollo
11, the first manned lunar landing mission.
30Project Mercury
- Project Mercury was the U.Ss first successful
manned spaceflight program. It ran from 1959
through 1963 with the goal of putting a man in
orbit around the Earth.
31Project Gemini
- a two-person U.S. spacecraft designed for orbital
rendezvous and docking used in 196566 in
various experiments preparatory to a landing on
the moon.
32Project Apollo
- Apollo 13 was the third manned lunar-landing
mission, part of Project Apollo under the NASA in
the United States. It launched on April 11, 1970.
Two days after the launch, the Apollo spacecraft
was crippled by an explosion.
33Space probe
- A spacecraft carrying instruments intended for
use in exploration of the physical properties of
outer space or celestial bodies other than Earth.
34Space Probe
- an unmanned spacecraft designed to explore the
solar system and transmit data back to earth.
35Space Shuttle
- A reusable spacecraft with wings for controlled
descent in the atmosphere, designed to transport
astronauts between Earth and an orbiting space
station and also used to deploy and retrieve
satellites.
36Astronomical Unit
- A unit of length used in measuring astronomical
distances within the solar system equal to the
mean distance from Earth to the sun,
approximately 150 million kilometers (93 million
miles).Read more http//www.answers.com/topic/
astronomical-unitixzz1BUQUup7x
37Phases of the Moon
http//nssdc.gsfc.nasa.gov/planetary/lunar/images/
astflag.jpg
38The Moon
- The Moon is Earths one natural satellite and is
more than ¼ the size of the Earth itself. Due to
its smaller size and slower speed of rotation,
the Moons gravity is 1/6 of the Earths gravity
pull.
39Revolution of the Moon
- The Moon revolves around the Earth
- The Earth revolves around the Sun
- The Moon passes through phases during a cycle
that repeats itself every 27.3 days. - As this occurs, some of the suns light is
blocked by the moons shadow or by the Earths
shadow.
http//co-ops.nos.noaa.gov/astronomical.shtml
40Rotation of the Moon
- The moon rotates on its axis approximately every
27.3 days - The moon rotates on its axis at about the same
rate that it revolves around the Earth
http//co-ops.nos.noaa.gov/astronomical.shtml http
//hrw.com
41The Light of the Moon
- The Moon does not generate any light itself it
just reflects the light of the Sun.
http//co-ops.nos.noaa.gov/astronomical.shtml
42Moon Phases
- The Moon does not produce its own light, but
looks bright because its surface reflects light
from the Sun. As the Moon orbits the Earth, the
amount of the lighted surface that is visible
from Earth changes. This causes the shape of the
visible surface to change and give us the phases
of the moon.
43Moon Phases
- The Moon passes through 6 phases during a cycle
- New Moon
- Waxing Crescent
- First Quarter
- Waxing Gibbous
- Full Moon
- Waning Gibbous
- Last Quarter
- Waning Crescent
- http//www.calculatorcat.com/moon_phases/moon_phas
es.phtml
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45New Moon
- The New Moon lies between the Earth and the Sun
because the sunlit side of the Moon is away from
the Earth. The New Moon is invisible to us.
http//co-ops.nos.noaa.gov/astronomical.shtml
46Waxing Crescent
- As the Moon moves along its orbit, it appears as
a crescent on the right side. As the visible
part of the moon grows, it is said to be waxing.
http//co-ops.nos.noaa.gov/astronomical.shtml
47First Quarter
- The Moon has now completed a quarter of its orbit
and appears to us as a half circle.
http//co-ops.nos.noaa.gov/astronomical.shtml
48Waxing Gibbous
- When more than half of the sunlit side of the
Moon is visible, the Moon is gibbous.
http//co-ops.nos.noaa.gov/astronomical.shtml
49Full Moon
- The Moon reaches the second quarter of its orbit.
The entire daylight side is visible and appears
to us as a circle.
http//co-ops.nos.noaa.gov/astronomical.shtml
50Waning Gibbous
- As the sunlit side of the Moon turns away from
us, the Moon begins to wane.
http//co-ops.nos.noaa.gov/astronomical.shtml
51Last Quarter
- The Moon reaches the third quarter of its orbit
and appears as a backwards D.
http//co-ops.nos.noaa.gov/astronomical.shtml
52Waning Crescent
- The visible portion of the Moon dwindles to a
crescent. The fraction of the Moons disk that is
illuminated is decreasing.
http//co-ops.nos.noaa.gov/astronomical.shtml
53The Effect of the Phases of the Moon on the Tides
- Spring Tides occur when the sun, the Earth and
the moon are horizontally in line. During this
time the high tides are the highest and the low
tides are the lowest. - Neap Tides occur when the sun, the Earth and the
moon are at 90o angles. There is less of a
difference in high tides and low tides during
this time.
http//co-ops.nos.noaa.gov/astronomical.shtml
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57Nova scotia horbor tide animation
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59Moon Rotation
The moon wobbles as it rotates. True
60This is showing the shadow of the moon going
across the earth. (A solar Eclipse)
Notice that half the earth is dark and half is
always light.
61Can you locate the Marias and the highlands?
The OLD Man of the Moon.
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63Questions Discussion
http//nssdc.gsfc.nasa.gov/planetary/lunar/images/
astflag.jpg
64Questions Discussion
- The moon rotates on its axis and revolves once
around the Earth at the same rate which causes - A. day and night
- B. the same side of the moon to always be visible
from Earth - C. the tides to change
- D. opposite sides of the moon to be visible from
Earth
65Questions Discussion
- The moon rotates on its axis and revolves once
around the Earth at the same rate which causes - A. day and night
- B. the same side of the moon to always be visible
from Earth - C. the tides to change
- D. opposite sides of the moon to be visible from
Earth
66Questions Discussion
- 1. Explaination
- Because the rotation and revolution of the moon
around the Earth happens at approximately the
same rate only one side of the moon is ever
visible from Earth. Follow the path in your mind
to understand this concept
http//hrw.com
67Questions Discussion
- The moon and the sun appear to move across the
sky each day because of - A. the Suns movement in the sky
- B. the Earths revolution around the sun
- C. the Earths rotation on its axis
- D. the Moons shadow on the Earth
68Questions Discussion
- The moon and the sun appear to move across the
sky each day because of - A. the Suns movement in the sky
- B. the Earths revolution around the sun
- C. the Earths rotation on its axis
- D. the Moons shadow on the Earth
69Questions Discussion
- 2. Explanation
- Because the Earth rotates on its axis causing
day and night, the moon and sun appear to move
across the sky. Our position on the Earth is
what is actually changing.
http//hrw.com
70Questions Discussion
- How often do Spring tides and Neap tides each
occur? - A. two times a month
- B. two times a day
- C. two times a year
- D. four times a year
http//co-ops.nos.noaa.gov/astronomical.shtml
71Questions Discussion
- How often do Spring tides and Neap tides each
occur? - A. two times a month
- B. two times a day
- C. two times a year
- D. four times a year
http//co-ops.nos.noaa.gov/astronomical.shtml
72Questions Discussion
- 3. Explanation
- Because the moon takes approximately a month to
revolve around the Earth and is in line
horizontally two times and at a 90o angle two
times during this period each of the types of
tides (Spring and Neap) occur two times a month.
http//co-ops.nos.noaa.gov/astronomical.shtml
73Questions Discussion
- What is the best way to arrange the following
words into the concept map below (phases,
eclipse, solar eclipse, revolution, and lunar
eclipse) - A. phases, revolution, eclipse, solar eclipse,
- lunar eclipse
- B. eclipse, solar eclipse, lunar eclipse, phases,
- revolution
- C. lunar eclipse, revolution, eclipse, solar
eclipse, - phases
- D. revolution, phases, eclipse, solar eclipse,
- lunar eclipse
1
2
3
4
5
74Questions Discussion
- What is the best way to arrange the following
words into the concept map below (phases,
eclipse, solar eclipse, revolution, and lunar
eclipse) - A. phases, revolution, eclipse, solar eclipse,
- lunar eclipse
- B. eclipse, solar eclipse, lunar eclipse, phases,
- revolution
- C. lunar eclipse, revolution, eclipse, solar
eclipse, - phases
- D. revolution, phases, eclipse, solar eclipse,
- lunar eclipse
1
2
3
4
5
75Questions Discussion
Revolution
of the moon around the Earth results in
phases
of the moon which may result in an
eclipse
such as a
solar eclipse
lunar eclipse
76Questions Discussion
5. At which position on the diagram above does
the waning gibbous phase of the moon occur?
A. 1 B. 2 C. 3 D. 4
http//hrw.com
77Questions Discussion
5. At which position on the diagram above does
the waning gibbous phase of the moon occur?
A. 1 B. 2 C. 3 D. 4
http//hrw.com
78Questions Discussion
5. Explanation After the full moon which is
between stages 2 and 3, the moon begins the
waning stage and it first passes through a
gibbous before the half and crescent stages,
therefore number 3 C is the correct answer
http//hrw.com
79Questions Discussion
- 6. Susan is sketching the appearance of the moon
each night. Below is her entry for last night. - What will Susans entry look like in 14 days?
- A. Image A
- B. Image B
- C. Image C
- D. Image D
http//hrw.com
80Questions Discussion
- 6. Susan is sketching the appearance of the moon
each night. Below is her entry for last night. - What will Susans entry look like in 14 days?
- A. Image A
- B. Image B
- C. Image C
- D. Image D
http//hrw.com
81Questions Discussion
- 6. Explanation
- Answer choice D is correct because in 14 days
the moon will have gone through ½ of its cycle
and will basically be in the opposite phase as it
is when Susan illustrates the moon phase.
http//hrw.com
82Questions Discussion
- 7. Mrs. Gupta is the Cub Scout den mother. She is
taking a troop of boys on a camp out and believes
it will be easier if she schedules the outing to
happen during the full moon. Last night she
observed a waning gibbous moon. Approximately how
many days will she have to wait before the next
full moon? - A. 7
- B. 14
- C. 21
- D. 28
http//hrw.com
83Questions Discussion
- 7. Mrs. Gupta is the Cub Scout den mother. She is
taking a troop of boys on a camp out and believes
it will be easier if she schedules the outing to
happen during the full moon. Last night she
observed a waning gibbous moon. Approximately how
many days will she have to wait before the next
full moon? - A. 7
- B. 14
- C. 21
- D. 28
http//hrw.com
84Questions Discussion
- 7. Explanation
- If you divide the phases up there is
approximately 7 days between every other phase or
3.5 days between each phase which would give you
21 days until the next full moon from a waning
gibbous. The waning gibbous is the phase just
after the full moon therefore you have to go all
the way around to get back to a full moon.
http//hrw.com