Rotation/Revolution
What is "rotation"?
Earth spinning on it's axis.
How much of the moon is lit up at any point in time?
HALF!
Does a Solar Eclipse happen during day or night?
DAY
What is the name of the line that separates the Northern Hemisphere from the Southern Hemisphere?
The Equator
How many stars are in the Solar System?
1 star- named the sun!
What is revolution?
Earth orbitting the sun.
What is the difference between a waxing moon and a waning moon?
WAXING= shadow on left
WANING= shadow on right
Why do we see Solar and Lunar Eclipses?
The REVOLUTION or ORBIT of the Earth around the Sun and the Moon around Earth.
The Northern Hemisphere and Southern Hemisphere are always experiencing _________ seasons.
opposite.
Place these three objects in order from smallest to largest:
Universe
Solar System
Galaxy
Solar System
Galaxy
Universe
How long does rotation take?
24 hours/1 day
Why are we always seeing the same side of the moon?
The moon rotates and revolves at the same pace. It takes the same amount of time for the moon to make one full rotation and one full revolution.
What is the Umbra? What is the Penumbra?
Umbra: Darkest part of the shadow
Penumbra: Lightest part of the shadow.
What is happening to the Northern Hemisphere in fall and Spring to cause these seasons. (Which way is the axis tilted)
In Spring and fall the Northern Hemisphere is not tilted towards or away from the direct rays of the sun. The axis is in a neutral position.
What is the difference in the life cycle of a small star and the life cycle of a large star?
A large star will die and become a black hole or a neutron star while a white dwarf will run out of fuel and die to become a white dwarf and then eventually a black dwarf.
How long does revolution take?
365 days
Explain WHY we see the phases of the moon.
The reason we see the phases of the moon is because the moon is always half lit-up and half dark. As the moon REVOLVES around Earth- we see different portions of the lit up part of the moon.
What is the order of the Sun, Earth, and moon in a Solar Eclipse?
Sun, Moon, Earth. The moon is between the Sun and Earth.
How much is Earth's axis tilted?
23.4 degrees
What is the force that keeps the Earth orbiting the sun and the Moon orbiting Earth?
Gravity.
What does the rotation of Earth cause? What does the revolution of Earth cause?
The rotation causes the changing of day and night. Revolution causes the seasons and Eclipses.
How long does it take for the moon to make one full rotation and revolution?
27.3 days
What phase would the moon USUALLY be in when there is a Lunar Eclipse?
Full Moon
Explain what causes the changing of the seasons and give an example of what is happening with the Earth in June.
The tilt of Earth on it's axis is what causes the seasons to change. For example, In June, the Northern Hemisphere is tilted TOWARDS the sun and it is summer. The Southern Hemisphere is tilted AWAY FROM the sun and it is Winter.
What are the two factors that gravity depends on?
mass and distance.