6th - SCIENCE CHAPTER 20 VOCABULARY Flashcards
(14 cards)
When the Earth’s axis is tilted neither toward or away from the sun
Equinox
The imaginary line that divides Earth into its northern and Southern Hemisphere
Equator
When earths rotation axis is tilted correctly toward or away from the sun
Solstice
Path an object follows as it moves around another object
Orbit
The invisible line where an object rotates
Rotation axis
Large and dark surface on the moon
Maria
The part of a planet that can be seen from Earth
Phase
Phases of the moon during which less of the moon nearside is lit each night
Waning phases
Phases of the moon more of the moon nearside is lit each night
Waxing phases
And occurs during which the moon moves into earth’s shadow
Lunar eclipse
An occourance when the moon’s shadow appears on earth’s surface
Solar eclipse
The later part of the shadow and light is particularly blocked
Penumbra
The central darker part of a shadow and light is totally blocked
Umbra
Periodic rise and fall of earth ocean surface caused by the gravitational force between earth and the moon between earth and the sun
Tide