Is a giant ball of superheated gas or plasma composed of hydrogen and helium.

Is an object that orbits the sun.

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 project.

Oval shape of the planets’ orbits.

Largest object in our solar system.

An imaginary line that passes from the North Pole , through the earths center, to the South Pole.

The spinning of Earth on its axis.

The movement of one object around another.

Moves around things like 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 it’s forced depends on mass and distance.

Tendency that keeps planets in motion.

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.

Different shape of the moon you see.

When the moon passes directly between the Earth and sun during a new moon.

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	Is a giant ball of superheated gas or plasma composed of hydrogen and helium.
Planet	Is an object that orbits the sun.
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 project.
Geocentric	A earth centered model.
Heliocentric	A sun centered model.
Ellipse	Oval shape of the planets’ orbits.
Sun	Largest object in our solar system.
Axis	An imaginary line that passes from the North Pole , through the earths center, to the South Pole.
Rotation	The spinning of Earth on its axis.
Revolution	The movement of one object around another.
Orbit	Moves around things like 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 it’s forced depends on mass and distance.
Inertia	Tendency that keeps planets in motion.
Weight	Force of gravity on an object.
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.
Phase	Different shape of the moon you see.
Solar eclipse	When the moon passes directly between the Earth and sun during a new moon.
Maria	Dark, smooth, lava covered areas on the moon.
Highlands	Higher lighter areas on the moon covered with craters.

Created by: user-1979406

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