Embed Size (px)
DESCRIPTION
Sink or Swim. Rotation – the actual movement of the Earth spinning on _____________________. axis. Rotation of earth takes how long?. 24 hours. Revolution of Earth takes how long?. 365 days. - PowerPoint PPT Presentation
Citation preview
SINK OR SWIM
Rotation – the actual movement of the Earth spinning on _____________________
axis
Rotation of earth takes how long?
24 hours
Revolution of Earth takes how long?
365 days
There are two days each year where there is exactly 12 hours of darkness and 12 hours of light. AND Sun is directly overhead at the equator at noon. This is called?
Equinoxes
About how long is one moon cycle?
29 days
Waxing means?
Getting larger
WHAT PHASE?
Waxing crescent
Why do we always see the same side of the moon?
Revolution and rotationAre the same
WHAT ECLIPSE IS THIS?
Lunar eclipse
WHAT PHASE?
Waning Gibbous
WHAT KIND OF ECLIPSE?
Solar Eclipse
_________ - total darkness where total eclipse occurs.
Umbra
1
3
2
What phase is at 2
New moon
What we know about the moon mostly comes
from what?!?!
Studying Moon Rocks
How much of the moon can you see during the full moon phase?
All
Last quarter
Name the Phase
If the moon is in the full moon phase a _____ eclipse could occur.
lunar
At what angle is Earth’s axis tilted?
23.5˚
1
3
2
What phase is at 1
Waning crescent
During which season in the Northern Hemisphere is the earth’s axis tilted away from the sun?
Winter
How often do tides occur?
Every 6 hours
What is the longest day of daylight in the Northern Hemisphere each year?
Summer solstice
What is the source of light that allows us to see the
moon?
Sun
On which day is the night longer than the day in the Northern
Hemisphere?June 21st
During which phase would the earth’s tides have the
greatest difference.
New and full moon
The phase of the moon you see depends on what?!?!
How much of the sunlit Side faces the Earth
What is the main cause of Earth’s seasons?
The Tilt
During an equinox Earth experiences what kind of
days?
Equal light and night
How is the gravity on the moon different from the
gravity on Earth?
It’s less….1/6 of Earth
WHICH OF THE FOLLOWING IS NOT TRUE ABOUT THE MOON?1. the moon revolves around Earth.2. The moon rotates and revolves at the same
speed.3. The moon revolves around the sun.4. The moon is smaller than the earth.
4
Eclipses - are named bywhich object's lightis being _______ from
your view
Blocked
Hemispheres tilted toward the sun get more ______ light, therefore, they got
more _________
Direct, heat
What theory explains how the Moon was formed?
Collision
