Rotation/Revolution
Seasons
Moon Phases
Eclipses
Space Misc.
100
The spinning of the Earth or another spatial object on its axis.
What is rotation?
100
The direction that the North Pole is always tilted.
What is toward the North Star (Polaris)?
100
The phase of the Moon that we cannot see.
What is the New Moon?
100
The Earth is between the Moon and the Sun.
What is a lunar eclipse?
200
The time it takes Earth to make one rotation.
What is 24 hours or one day and night?
200
The degree of Earth's tilt on its axis.
What is 23.5 from the vertical?
200
The phase of the Moon that we can see all of the side of the Moon that is facing the Earth.
What is the Full Moon?
200
The Moon is between the Sun and the Earth.
What is a solar eclipse?
300
The Earth's or another spatial object's motion around the Sun.
What is revolution?
300
The two times of the year in which there are equal amounts of daylight and darkness hours.
What are the Spring and Fall Equinoxes?
300
The phases of the Moon in which the right side of the Moon is increasing in illumination.
What is waxing?
300
The two forces that keep all spatial objects revolving around the Sun.
What are gravity and inertia?
400
The time it takes for the Earth to make one revolution.
What is 365 1/4 days or one year?
400
The shortest and longest daylight hour days of the year.
What are the Summer and Winter Solstices?
400
The phases of the Moon in which the left side of the Moon is decreasing in illumination.
What is waning?
400
Why we only see one side of the Moon.
What is the Moon's revolution and rotation rate take the same amount of time.
500
Earth's path (and the shape of it) around the Sun
What is an elliptical orbit?
500
Cause seasons on Earth
What are the tilt of the Earth on its axis, as it revolves around the Sun, receiving direct and indirect Sun rays?
500
Causes of the Moon phases.
What is the revolution of the Moon around the Earth, as it (the Moon) is receiving different amounts of reflected light from the Sun?
M
e
n
u