Gravity
An object that turns on its axis
Rotation
what is a planet??
A celestial body that moves in an elliptical shape
what is a tide??
The continual rise and fall of water in seas and oceans
What causes us to have day and night???
Earth's rotation
Approximatley how many days does it take to complete the entire lunar cycle??
29.5 days
Greater the mass the more __________.
Gravitational force
What are all the inner planets??
Mercury, Venus, Earth, and Mars
What causes the oceans tides??
The positions of the Sun, Moon, and the Earth.
What is it called when day and night are equal at the equator??
Equinoxes
More than half lit on the right and shaped like a football??
Waxing Gibbous
An object that orbits another object??
Revolution
what are all of the outer planets??
Jupiter, Saturn, Neptune, and Uranus
What two moon phases occur during the neap tides??
1st and 3rd Quarter
When the Northern Hemisphere is tiltled away from the sun it is called______.
Winter
Approximatley how many days does it take to complete one moon phase to another??
3.7 days
How long does it take for the Earth to make one full rotation around the sun??
24 hours
What are the planets farthest from the sun called??
Gas Giants
What role does the Moon play in the tides??
The Moon pulls the solid Earth closer, causing a bulge on the oceans farthest from the moon
The longest or shortest days of the year???
Solstices
Approximately how many days does it take to complete 1/4 revolution??
7.4 days
How long does it take for the Earth to make one full revolution around the Sun??
365 1/4 days
What is the one planet that doesn't-have a moon
Venus
What role does gravity play in the oceans tides??
The Moon’s gravity causes the tides to bulge out from the both the side closest to the Moon and the side furthest from the Moon.
What date does the Autumnalequinox happen??
September 22nd
The ____ phase is having concave and convex edges terminating in points.
Crescent