Earth/Moon/Sun System
The Earth's movement around the sun.
Rotation or Revolution
REVOLUTION
This is when the moon is between the Earth and the sun.
NEW MOON
We see different ____________ of the moon because the moon moves to different positions around the earth.
Phases
When we see 1/2 of the moon's face we call this...
FIRST or THIRD (LAST) QUARTER?
When does the Moon become completely dark?
Lunar eclipse
The Earth's movement on it's axis.
ROTATION.
The Earth, moon and sun are in a line and the moon looks fully bright.
FULL MOON
When the moon is completely dark and there is no light on it - called
Lunar eclipse
When we see the entire bright side of the moon, we call this...
FULL MOON
What are the conditions for lunar eclipse to happen?
Earth should be between the moon and the sun in a straight line.
One half of the moon is illuminated by the sun .
The other half of the moon is .....
Dark
This phase occurs after a full moon but before the third quarter.
WANING GIBBOUS
Moon gets its light from ----
sun
Moon's appearance changes because
It changes its position.
The shape of Earth's orbit is...
OVAL
The moon's light comes from this source.
SUN
This phase occurs shortly after a new moon.
WAXING CRESCENT
The moon orbits around the .
Earth
The moon's light is _______________ when it is waxing.
growing
Why don't the Lunar eclipses happen on every full moon day?
It is because the Moon's orbit is tilted out of alignment during Lunar Eclipse.
or Sun, Earth, and Moon should line up exactly in the right spot on its tilted orbit.
Moon's appearance changes because the ___________
of the moon changes.
Position
When the moon is fading.. it is
WANING
The moon's orbit is
circular
There are ____________ phases of the moon.
EIGHT PHASES
How long does it take for the Moon to orbit around the Earth?
29.5 DAYS