Earth in Space
The Earth takes about this amount of time to revolve around the sun?
365 1/4 days
_______________ is a day when Earth's rotation axis is the most toward or away from the sun while the ________________ is a day when Earth's rotation axis is NOT tilted either towards or away resulting in equal amounts of day and night
solstice; equinox
27.3 days
the amount of time it takes the moon to revolve around Earth AND one complete rotation
During which principle lunar phase is the moon not visible on Earth?
New Moon
eclipse that happens during a new moon phase where the moon casts a shadow on the Earth
solar eclipse
Earth rotates on its axis once every ...
24 hours
What is approx. 23.5 degrees?
The Earth's axis.
The shape of the moon seems to change because...?
The moon revolves around Earth
In a waxing moon, the light is on the __________
In a waxing moon the light is on the ____________
left; right
lighter part of the shadow where light is partially blocked ________________;
the central, darker part of the shadow where light is totally blocked
penumbra; umbra
The Earth's rotation causes .........
day and night
Earth is tilted toward the sun and there are more hours of daylight. What season is it?
Summer
Why does the moon appear at night?
It reflects light from the sun
How many days does it take to see all of the phases of the moon or the lunar phases cycle?
29.5 days
eclipse that happens during a full moon when the moon moves into Earths shadow
lunar eclipse
What force is most responsible for Earth's orbit around the sun?
Gravitational force (Gravity)
Winter is colder because...
Earth is tilted away from the sun.
The percentage of the Moon that is visible during the first quarter phase.
50%
Waxing means the light is _______________ and waning means the light is ___________________.
Waxing means the light is increasing and waning means the light is decreasing.
what type of shadow would give a partial eclipse and what type of shadow would give a total eclipse
penumbra; umbra
The light from the sun is most intense at the ________ and the Sun's light spreads out as you travel towards the poles because the Earth is __________________.
equator, curved
If Earth had no tilt, would there be seasonal changes?
No, it's the tilt that causes the seasonal changes
What is the difference between rotation and revolution?
Rotation occurs when an object spins on it's axis. Revolution occurs when one object moves in a circular path around a second object.
List the phases of the moon starting with new moon
waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter, waning crescent, new moon
draw the Earth, moon and sun in position for a lunar and solar eclipse
lunar: sun-Earth- moon
solar: sun-moon-Earth