26 terms

Our Moon

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the far side of the Moon
This side of the Moon is NOT seen from Earth. It is much rougher and has few maria.
the dark side of the Moon
The side of the Moon which is not currently receiving sunlight.
waxing phases of the Moon
Describes phases following a new Moon, as more of the Moon's lighted side becomes visible. (The Moon appears to increase in size.)
waning phases of the Moon
Describes phases that occur after a full moon, as the visible lighted side of the Moon grows smaller. (The Moon appears to decrease in size.)
gibbous phases of the Moon
More than a quarter, but less than fully illuminated.
crescent phases of the Moon
The shape of the Moon when less than a quarter.
the four main phases of the Moon
What are Full, Quarter, Crescent, and Gibbous.
maria (singular is mare)
Dark, flat areas on the Moon created by lava flows.
Cosmology
the study of how the universe was formed.
Earth's seasons are caused by
the tilt of Earth.
Our night and day on Earth is caused by
the spinning of the Earth on its axis.
A year on Earth is caused by
the Earth rotating around the Sun.
Solar eclipse is caused by
The Moon coming between the Earth and the Sun casting a shadow over Earth.
Lunar eclipse is caused by
The Earth coming between the Moon and the Sun casting a shadow over the Moon.
Astronomy
the study of the Sun, the Moon, and other objects is space.
Electromagnetic radiation
a form of energy that exhibits wavelike behavior as it travels through space.
wavelength
The distance between crests of waves as it travels through space.
frequency
The number of waves which occur per second.
electromagnetic spectrum
Includes all forms of electromagnetic radiation; the types of radiation differ in their frequencies and wavelengths.
telescope
An instrument used to observe distant objects by making them appear closer.
probes
An instrument used to gather information from other bodies in space and transmit it back to Earth.
artificial satellites
An instrument used to gather and transmit information from Earth back to Earth .
satellites
Any object which orbits another object.
Tides are caused by
differences in the gravitational force of the moon at different points on Earth.
crater
A light colored, circular region on the moon caused by a meteoroid hitting it.
Near side of the moon
The side of the moon that we always see from Earth.