Earth - 1
What is Rotation?
A planet spinning on its axis
What is revolution?
An object traveling around the another object.
(Ex. earth traveling around the sun or moon traveling around the Earth)
What is the lunar cycle?
The different phases of the moon we see as it travels around the Earth. Caused by a reflection of the sunlight on the moon
What Moon phase starts of the cycle?
New Moon
How long does it take Earth to have one rotation?
24 hours
How long does it take the Earth to REVOLVE around the Sun and go through all seasons?
365 days
(365.242 days)
How long does the lunar cycle take ,one full cycle,?
27-29 days
What are the phases called when you can see only half of the moon? (Two phases)
First and Third quarter moon
What causes day and night?
Earth rotating on its axis
What causes seasons?
The seasons are caused by the tilt of the Earth's axis changing the amount of direct sunlight the Earth gets in different areas.
What are the two moon phases called when you see most of the moon, but not all? (two phases)
Waxing and Waning Gibbous
What phases are when you see all or none of the moon?
Full and New Moon
What is a leap year?
Every 4 years, an extra day is added to February to catch up on time. (Earth travels around the sun in 365.242 days)
Do the Northern and Southern Hemispheres experience the same seasons at the same time?
No, they are flip flopped so when its Fall in the Northern, it is Spring in the Southern
What is it called when the lunar cycle is going from the new moon to the full moon? (increases in the amount of light)
Waxing
What are the two phases called when you only see a sliver of the moon? (two phases)
Waxing and Waning Crescents
Why do some places on Earth have shorter days or longer days than others?
Direct and indirect light from the sun
During summer our part of Earth is tilted _____ the sun, during winter our part of Earth is tilted ______ from the sun.
toward, away
Why can we only see one side of the moon from the Earth?
What is it called when the lunar cycle goes from full moon to the new moon? (decreases in the amount of light we see)
Waning