A spin in place. Earth rotates once every 24 hours, causing day and night.

An imaginary line through the North and South poles that Earth rotates around.

The path one object follows as it goes around another in space.

One full trip around another object; Earth's revolution around the sun takes one year.

The line where Earth and the sky appear to meet.

When your part of Earth faces the sun and gets direct light.

When your part of Earth faces away from the sun and is in darkness.

When the sun first appears above the eatern horizon.

When the sun disappears below the western horizon.

A group of stars that form a pattern in the sky, like Orion.

How objects seem to move because Earth is rotating, even though they are far away.

Earth's rotation on its axis once every 24 hours, making the sun, moon, and appear to move east to west.

Earth's yearly path around the sun.

The moon's path around Earth, completed in about 27.3 days.

The fraction of the moon's sunlit side we can see from earth.

The moon is between earth and the sun; the side facing Earth is dark

A thin lit slice grows larger after the new moon

Half of the moon's disk (right side in the Northern Hemisphere) looks lit.

More than half of the moon looks lit and is still growing toward full.

Earth is between the sun and moonl the whole sunlit side faces Earth.

More than half is lit but the lit part is shrinking after full.

Half of moon's disk (left side in the Northern Hemisphere) looks lit.

A thin lit slice remains before the next new moon

The repeating pattern of moon phases that takes about 29.5 days.

The moon passes between the sun and Earthm casting a shadow on Earth.

Earth passes between the sun and the moon, casting Earth's shadow on the moon.

A star near the direction of Earth's North Pole; other stars appear to circle around it.

Any natural object in space, such as the sun, moon, planet, or sun.

A dark area made when an object blocks light.

An object that gives off light, such as the sun or a lamp.

Light that bounces off a surface, like sunlight reflecting from the moon.

A weight on a string of wire that swings; used to show Earths rotation (Foucault's Pendulum)

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6th Grade Space

6th graders Space Unit

Term	Definition
Rotation	A spin in place. Earth rotates once every 24 hours, causing day and night.
Axis	An imaginary line through the North and South poles that Earth rotates around.
Orbit	The path one object follows as it goes around another in space.
Revolution	One full trip around another object; Earth's revolution around the sun takes one year.
Horizon	The line where Earth and the sky appear to meet.
Daytime	When your part of Earth faces the sun and gets direct light.
Nighttime	When your part of Earth faces away from the sun and is in darkness.
Sunrise	When the sun first appears above the eatern horizon.
Sunset	When the sun disappears below the western horizon.
Constellation	A group of stars that form a pattern in the sky, like Orion.
Apparent Motion	How objects seem to move because Earth is rotating, even though they are far away.
Earth's Rotation	Earth's rotation on its axis once every 24 hours, making the sun, moon, and appear to move east to west.
Earth's Orbit	Earth's yearly path around the sun.
Moon's Orbit	The moon's path around Earth, completed in about 27.3 days.
Phase	The fraction of the moon's sunlit side we can see from earth.
New Moon	The moon is between earth and the sun; the side facing Earth is dark
Waxing Crescent	A thin lit slice grows larger after the new moon
First Quarter	Half of the moon's disk (right side in the Northern Hemisphere) looks lit.
Waxing Gibous	More than half of the moon looks lit and is still growing toward full.
Full Moon	Earth is between the sun and moonl the whole sunlit side faces Earth.
Waning Gibbous	More than half is lit but the lit part is shrinking after full.
Third Quarter	Half of moon's disk (left side in the Northern Hemisphere) looks lit.
Waning Crescent	A thin lit slice remains before the next new moon
Lunar Cycle	The repeating pattern of moon phases that takes about 29.5 days.
Solar Eclipse	The moon passes between the sun and Earthm casting a shadow on Earth.
Lunar Eclipse	Earth passes between the sun and the moon, casting Earth's shadow on the moon.
Polaris (North Star)	A star near the direction of Earth's North Pole; other stars appear to circle around it.
Celestial Body	Any natural object in space, such as the sun, moon, planet, or sun.
Shadow	A dark area made when an object blocks light.
Light Source	An object that gives off light, such as the sun or a lamp.
Reflected Light	Light that bounces off a surface, like sunlight reflecting from the moon.
Pendulum	A weight on a string of wire that swings; used to show Earths rotation (Foucault's Pendulum)

Created by: user-2023626

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