Moon Phases Flashcards
The spinning of Earth on its axis
Rotation
The movement of one object around another
Revolution
A planet sized object collided with Earth to form the moon
Collision Ring Theory
A device used to observe distant objects by making them appear closer
Telescope
Telescopes that have a mirror
Reflecting
Telescopes with objective lenses
Refracting
Dark, flat areas on the moon made of hardened rock formed from lava flows that occurred 3-4 billion years ago
Maria
Lighter, rough mountain areas of the moon
Highlands
Bowl shaped areas created by the impact of meteoroids (small chunks of rock from space)
Crater
The moon rotates ____ for every revolution around the Earth, so we never see the far side of the moon
Once
Different shapes of the moon you see from Earth
Phases
When the moon passes directly between the Earth and the sun, blocking sunlight from Earth. The moon’s shadow hits Earth.
Solar Eclipse
When Earth blocks sunlight from reaching the moon
Lunar Eclipse
During a total lunar eclipse, the moon is in earth’s _____
Umbra
The darkest part of the moon or Earth’s shadow
Umbra