This is the planet with the most circular orbit.
What is Venus?
The apparent rising and setting o the Sun is caused by this motion of Earth.
What is rotation?
The moon is illuminated 100% during this phase.
What is a full moon?
This is the degree to which the Earth is tilted.
What is 23.5o?
The fourth planet from the Sun.
What is Mars?
This is the planet with the longest period of revolution in the solar system.
What is Neptune?
The appearance of different constellations throughout the year is evidence for this motion.
What is revolution?
The 2 week period where the amount of the moon that is lit is increasing.
What is waxing?
Despite those that think being close to the sun makes us feel warmer, this is actually the only factor that affects temperature.
What is angle of insolation?
This is the model of the solar system that places the Earth at the center.
What is the geocentric model?
Kepler's first law tells us that orbits are shaped like this.
What is an ellipse?
This is the reason why Earth experiences seasons.
What is Earth's titled axis?
This is the phase when the left half (50%) of the moon is illuminated.
What is third quarter?
The Sun is directly overhead at this location on March 21st.
What is the Equator?
This is the moon phase following a full moon, when the moon is still mostly lit.
What is a waning gibbous?
These are the factors affecting gravitational attraction.
What are mass and distance?
On these 2 days, the Sun is directly overhead (90o) at the Equator.
What is September 21st and March 21st? (Fall and Spring Equinox)
The moon's apparent diameter changing throughout the month is evidence of this.
What is moon's elliptical orbit / moon's distance from Earth varies?
This is the season that starts 3 months after the Earth reaches perihelion.
What is Spring?
At aphelion, this change occurs to the apparent diameter of the Sun.
What is decreases/smaller?
On December 21st, 2025, the Earth will reach this position in its orbit.
What is perihelion?
Earth moves slowest in its orbit during this month.
What is June?
The two high tides present at any time on Earth due to the moon are experienced this length of time apart from each other.
What is 12 hours?
This is the maximum altitude of the sun from New Rochelle on June 21st.
What is 72o?
This is the name of the person who triangulated the position of Mars in the 1500s before the invention of the telescope.
Who is Tycho Brahe?