Seasons
What is a season?
The name for a system of planets revolving around a star
What is a planetary system?
Ptolomy believed that this was in the center of the solar system.
What is the earth?
Different shapes the moon seems to have when viewed from Earth
What are phases?
The direction of Earth's rotation
What is from west to east?
Angle of a planet's axis from vertical and the reason for our seasons
What is the axial tilt?
The number of planets, including Pluto
What is 9?
Kepler discovered the orbits of the planet were not circular, but this oval type
What is elliptical?
This phase shows half the moon's lit side and is visible after the waning gibbous moon.
What is the third quarter moon?
The movement of one object in an orbit around another object
What is revolution?
The reason why our summers in the Northern Hemisphere are warmer than our winters?
What is the Northern Hemisphere is facing the sun due to axial tilt?
This planet has an atmosphere of carbon dioxide, very hot temperatures, and no change of seasons
What is Venus?
The telescope was invented and used by this astronomer to study the stars, moons, and planets.
Who was Galileo?
This phase of the moon appears dark because we only see the unlit side of the moon.
What is the new moon?
The imaginary line through Earth's center, from the North Pole to the South Pole
What is the axis?
These planets do not have a change of season because their axial tilts are either too small or too great.
What are Mars, Venus, Uranus and Pluto?
This planet is closest to the sun.
What is Mercury?
The heliocentric model of the solar system was theorized by this early astronomer.
Who was Copernicus?
There are approximately this number of moons in our solar system.
What is 60?
Chunk of rock and metal that orbits the sun
What is an asteroid?
Earth is closer to the sun during this season, ironically.
What is winter?
This planet has been host to several robotic rovers.
What is Mars?
Ancient Egyptians used the star Thuban as the North Star. Now we use Polaris as the North Star due to this phenomenon.
What is precession (or Earth's wobble)?
It takes our moon approximately this amount of time to revolve around the earth.
What is 29 days?
A ball of ice, rock, and frozen gases that orbits the sun
What is a comet?