Earth's Motion
Earth completes this motion in approximately 24 hours.
What is rotation (or rotating on its axis)?
The number of hours in one complete Earth rotation.
What is 24 hours?
The number of equinoxes that occur each year.
2
During this phase, the Moon appears fully illuminated from Earth.
What is a Full Moon?
A solar eclipse can occur when this celestial body is between the Sun and Earth.
What is the Moon?
This is the motion Earth makes around the Sun.
What is revolution (or revolving)?
The number of days in one complete Earth revolution around the Sun.
What is 365 days (or 365.25 days)?
The number of solstices that occur each year.
2
This phase describes when the Moon appears to become increasingly illuminated.
What is waxing?
A lunar eclipse can occur when this celestial body is between the Sun and the Moon.
What is Earth?
Earth completes one revolution around the Sun in this amount of time.
What is 365.25 days (or about 365 days)?
This unit measures the average distance between Earth and the Sun.
What is an astronomical unit (or AU)?
Equinoxes occur approximately in these two months.
What are March and September?
This phase describes when the Moon appears to become less illuminated.
What is waning?
This celestial body's gravity pulls on Earth's oceans to create tidal bulges.
What is the Moon?
This statement correctly describes Earth's two motions.
What is “Earth rotates on its axis and revolves around the Sun”?
The approximate number of days it takes the Moon to complete one orbit around Earth.
What is 27 days (or about a month)?
Solstices occur approximately in these two months.
What are June and December?
During this phase, the Moon appears completely dark from Earth.
What is a New Moon?
This celestial body also affects tides along with the Moon.
What is the Sun?
The side of Earth facing the Sun experiences this, while the side facing away experiences darkness as Earth rotates.
What is daylight (or day)?
Earth is the ___ planet from the sun.
This is the primary reason seasons occur on Earth
What is Earth's axis is tilted as Earth revolves around the Sun?
These are the two quarter phases of the Moon.
What are First Quarter and Third Quarter (or Last Quarter)?
This is how Earth's rotation affects tides at coastlines.
What is Earth's rotation moves coastlines through tidal bulges, producing changing high and low tides?