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

An object that orbits the sun, is large enough to have become rounded by its own gravity, and has cleared the area of orbit of any debris

A streak of light produced when 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 is a constellation

Largest object in our solar system

An imaginary line that passes from the North Pole and to the South Pole

The spinning of earth on its axis

The movement of one object around another

Path planets follow when they revolve around the sun

Earth is most 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

The force that attracts all objects toward each other

Law of universal gravitation

Every object attracts every other and its force depends on mass and distance

The tendency that keeps planets in motion

Different shape of the moon you se

When the moon passes directly between the earth and sun during a new moon

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

Darkest 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

Lesson 1

Term	Definition
Satellite	A body that orbits a planet
Star	A giant ball of superheated, gas, or plasma, composed of hydrogen and helium
Planet	An object that orbits the sun, is large enough to have become rounded by its own gravity, and has cleared the area of orbit of any debris
Meteor	A streak of light produced when 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 is a constellation
Geocentric	An earth centered model.
Heliocentric	A sun centered model
Ellipse	An oval shape
Sun	Largest object in our solar system
Axis	An imaginary line that passes from the North Pole and to the South Pole
Rotation	The 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 most 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	The force that attracts all objects toward each other
Law of universal gravitation	Every object attracts every other and its force depends on mass and distance
Inertia	The tendency that keeps planets in motion
Phase	Different shape of the moon you se
Solar eclipse	When the moon passes directly between the earth and sun during a new moon
Lunar eclipse	Occurs during a full moon when earth is directly between the moon and sun
Umbra	Darkest 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 tide	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-1979384

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