the distance light can travel in one year
Light Year
How often does the tide rise?
Every 12 hours; twice a day
Name the first planet from the sun
Mercury
What color of star is the hottest?
Blue
The repeating circular path an object takes around a gravity source
Orbit
When the sun's light is fully reflected from the moon to the earth
Full moon
What type of planet is the earth?
Terrestrial
What color of star is the coolest?
Red
Asteroid
When none of the sun's light is reflected from the moon to the earth
No moon; new moon
Name the 5th planet from the sun.
Jupiter
Surface of the sun
Photosphere
Reactions combining light elements into heavier elements, releasing energy
Nuclear Fusion
When some of the sun's light is reflected from the moon to the earth
Partial moon
Name a gas giant.
Jupiter, Saturn, Uranus, or Neptune
Middle layer of the sun
Chromosphere
A mathematical rule that tells us how the strength of the force of gravity depends on mass and distance
Newton's Law of Universal Gravitation
How long is one earth year?
365.25 days
What is the 7th planet from the sun?
Uranus
Neutron Star