Question | Answer |
A | New Moon |
Inertia | The tendency of an object to resist a change in motion |
Gravity | The attractive force between objects |
What's gravity's strength depend on? | Their masses and distance |
What did Kepler do? | Found out that the orbit of each planet is an ellipse |
What keeps planets in orbit? | Gravity and Inertia |
Inner planets | Mercury,Venus,Earth,and Mars(Terrestrial) |
Outer planets | Jupiter,Saturn,Uranus,Neptune,and Pluto (gas giants) |
B | Waxing Crescent |
C | First Quarter |
D | Waxing gibbous |
E | Full moon |
F | Waning Gibbous |
G | Third Quarter |
H | Waning cresent |
Neap | This tide occurs when the sun is at right angles to the line between Earth and the moon |
Eclipse | Occurs when the moon's shadow hits Earth or Earth's shadow hits the moon |
Penumbra | A person standing in this driection would see a partial solar eclipse |
Umbra | A person standing in this position would see a total solar eclipse |
Spring tide | Occurs when the sun, moon, and Earth line up |
Lunar Eclipse | Occurs at a full moon when Earth is directly between the moon and the sun |
Solar eclipse | Occurs when the moon passes between Earth and the sun |
Rotation | Movement of Earth around its axis |
Equinox | The sun is farthest north or south of the equator at this time |
Solstice | The noon sun is directly overhead at the equator at this time |
What causes seasons? | The earth is tilted and because it revolves around the sun |
Revolution | The movement of an object around another object |