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
|
What is the imaginary vertical line around which Earth spins? |
Axis |
|
|
What is a ellipse? |
A closed curve |
|
|
When is earth closest to the Sun? |
In January |
|
|
Earth's axis is tilted to what degree? |
23.5 |
|
|
What is solstices? |
Is the day when the Sun reaches it's greatest distance north or south of the equator |
|
|
When is Summer solstice? |
On June 21 or 22 |
|
|
When is Winter solstice? |
On December 21 or 22 |
|
|
What is a sphere? |
A 3-dimensional object |
|
|
What is a full moon? |
Occurs when all of these moons surface facing earth reflects light |
|
|
When does a Solar eclipse occur? |
When the Moon moves directly between the Sun and Earth and casts its shadow over past of Earth |
