A giant ball of superheated gas, or plasma, composed of hydrogen and helium.

A streak of light produced, a small piece of rock or ice.

A cold mixture of dust and ice that develops a long trail of light.

A pattern or group of stars that people imagine represents a figure, animal, or object.

An oval shape of the planets’ orbits.

Large object in our solar system.

Spherical, orbits the Sun, with a larger mass than nearby objects.

Imaginary line that passes from North to South Pole.

The movement of one object around another.

Path planets follow when they revolve around the sun.

Earth is directly tilted toward or away from the sun which causes the longest or shortest daylight of the year.

Earth is not tilted toward the sun which causes equal day and night.

Force that attracts all objects toward each other.

Law of universal gravitation

Pull of gravity depends on mass and distance.

Different shape of the moon you see.

When the moon passes directly between the Earth and sun.

Occurs during a full moon when Earth is directly between the moon and sun.

Darkness part of a shadow where light is completely blocked.

Area of a shadow where light is partially blocked.

Daily rise and fall of ocean water.

Higher high tides during full and new moons.

Lower high tides during the first and third quarter moons.

Dark, smooth, lava covered areas on the moon.

Higher lighter areas on the moon covered with craters.

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Sun-Earth-Moon

Term	Definition
Satellite	A body that orbits a planet.
Star	A giant ball of superheated gas, or plasma, composed of hydrogen and helium.
Meteor	A streak of light produced, a small piece of rock or ice.
Comet	A cold mixture of dust and ice that develops a long trail of light.
Constellation	A pattern or group of stars that people imagine represents a figure, animal, or object.
Geocentric	Earth-centered model.
Heliocentric	Sun centered model.
Ellipse	An oval shape of the planets’ orbits.
Sun	Large object in our solar system.
Planet	Spherical, orbits the Sun, with a larger mass than nearby objects.
Axis	Imaginary line that passes from North to South Pole.
Rotation	Spinning of Earth on its axis.
Revolution	The movement of one object around another.
Orbit	Path planets follow when they revolve around the sun.
Solstice	Earth is directly tilted toward or away from the sun which causes the longest or shortest daylight of the year.
Equinox	Earth is not tilted toward the sun which causes equal day and night.
Gravity	Force that attracts all objects toward each other.
Law of universal gravitation	Pull of gravity depends on mass and distance.
Phase	Different shape of the moon you see.
Solar eclipse	When the moon passes directly between the Earth and sun.
Lunar eclipse	Occurs during a full moon when Earth is directly between the moon and sun.
Umbra	Darkness part of a shadow where light is completely blocked.
Penumbra	Area of a shadow where light is partially blocked.
Tide	Daily rise and fall of ocean water.
Spring tide	Higher high tides during full and new moons.
Neap tides	Lower high tides during the first and third quarter moons.
Maria	Dark, smooth, lava covered areas on the moon.
Highlands	Higher lighter areas on the moon covered with craters.

Created by: user-1979087

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