Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
10 Cards in this Set
- Front
- Back
|
Imaginary line that passes through the Earth's center and its North and South Poles.
|
Axis
|
|
|
Holes on the surface of a moon or a planet formed when meteors hit the planet or moon.
|
Crater
|
|
|
What occurs when one object passes through the shadow of another.
|
Eclipse
|
|
|
The force that pulls all objects in the universe toward one another.
|
Gravity
|
|
|
The path a heavenly body takes as it revolves around a star or a planet.
|
Orbit
|
|
|
To turn completely around, such as the Earth rotating on its axis.
|
Rotate
|
|
|
To travel in a closed path.
|
Revolve
|
|
|
Any natural body, like the moon, or artificial object that orbits another object.
|
Satellite
|
|
|
It takes the moon about 28-29 days to go through a lunar cycle as it revolves around the earth.
|
Lunar Cycle
|
|
|
Has one Sun and nine planets
|
Solar System
|
