to turn around a center point or an axis. The Earth does this fully on its axis every 24 hours and that is why we have day and night.

to move around another object. The Earth does this around the Sun, which takes 365 days.

the path followed by a planet, moon, or other heavenly body as it travels around another object. The shape of Earth’s _________ around the Sun is elliptical.

a real or imaginary straight line about which something turns. The imaginary _____ of the Earth passes through the North and South Pole.

to slant or tip. The Earth does this at 23.5 degrees

one half of a sphere or globe. The Earth is divided at the equator into the Northern and Southern ____________________.

an imaginary line around the middle of the Earth, at an equal distance from the North Pole and the South Pole.

occurs when the Moon passes between the Sun and Earth, and the Moon casts a shadow on Earth. This occurs during the New Moon phase.

occurs when the Moon passes directly behind the Earth into its shadow. This can occur only when the Sun, Earth, and Moon are aligned during the Full Moon phase.

two days of the year when the amount of day and night are of equal length all over the world: Autumnal (Fall) ____________ and Vernal (Spring) _____________.

the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth.

the exceptionally high and low tides that occur at the time of the new moon or the full moon when the sun, moon, and earth are approximately aligned.

occurs when the difference between high and low tide is the least; the lowest level of high tide. These tides occur during the first and third quarter phases of the moon.

moon phase during which the side facing Earth cannot be seen because it is not illuminated.

moon phase during which less than half of the side facing the Earth is illuminated.

moon phase during which more than half of the side facing the Earth is illuminated.

moon phase when the entire side facing Earth is illuminated.

the illuminated surface of the Moon as seen from Earth is increasing in size.

the illuminated surface of the Moon as seen from the Earth is decreasing in size.

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Sun/Moon/Earth OW

Term	Definition
rotation	to turn around a center point or an axis. The Earth does this fully on its axis every 24 hours and that is why we have day and night.
revolution	to move around another object. The Earth does this around the Sun, which takes 365 days.
orbit	the path followed by a planet, moon, or other heavenly body as it travels around another object. The shape of Earth’s _________ around the Sun is elliptical.
axis	a real or imaginary straight line about which something turns. The imaginary _____ of the Earth passes through the North and South Pole.
tilt	to slant or tip. The Earth does this at 23.5 degrees
hemispheres	one half of a sphere or globe. The Earth is divided at the equator into the Northern and Southern ____________________.
equator	an imaginary line around the middle of the Earth, at an equal distance from the North Pole and the South Pole.
solar eclipse	occurs when the Moon passes between the Sun and Earth, and the Moon casts a shadow on Earth. This occurs during the New Moon phase.
lunar eclipse	occurs when the Moon passes directly behind the Earth into its shadow. This can occur only when the Sun, Earth, and Moon are aligned during the Full Moon phase.
equinox	two days of the year when the amount of day and night are of equal length all over the world: Autumnal (Fall) ____________ and Vernal (Spring) _____________.
tides	the rise and fall of sea levels caused by the combined effects of the gravitational forces exerted by the Moon and the Sun and the rotation of the Earth.
spring tides	the exceptionally high and low tides that occur at the time of the new moon or the full moon when the sun, moon, and earth are approximately aligned.
neap tides	occurs when the difference between high and low tide is the least; the lowest level of high tide. These tides occur during the first and third quarter phases of the moon.
new moon	moon phase during which the side facing Earth cannot be seen because it is not illuminated.
crescent	moon phase during which less than half of the side facing the Earth is illuminated.
gibbous	moon phase during which more than half of the side facing the Earth is illuminated.
full moon	moon phase when the entire side facing Earth is illuminated.
waxing	the illuminated surface of the Moon as seen from Earth is increasing in size.
waning	the illuminated surface of the Moon as seen from the Earth is decreasing in size.

Created by: pendletons

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