Planets
The four innermost planets are called the _______ planets.
terrestrial
_______ are rocky remnants of the early Solar System that are primarily found between Mars and Jupiter.
asteroids
How long does it take the moon to complete a full cycle of all of its phases?
29.5 days
In a _______ eclipse, the sun is blocked from view by the moon.
Solar
_____ are the rise and fall of ocean water due to the gravitational pull of the moon.
tides
What is the hottest planet?
Venus
When meteoroids enter Earth's atmosphere and burn up, they are sometimes called "__________".
shooting stars
A _____ moon is when the entire lit portion of the moon is facing AWAY from Earth; no light is visible.
New
About how many Eclipses happen every year?
7
The Sun is composed mainly of what two elements?
hydrogen and helium
Which planet has evidence of past water flow?
Mars
What causes a comet's glowing tail?
solar wind
The right (lit up) side of the moon seems to grow.
Waxing
The _______ is the darkest part of moon's shadow during an eclipse.
umbra
The _______ Model of the universe is the belief that the Earth is at the center of universe and all celestial bodies orbit around it.
Geocentric
What is the largest planet?
Jupiter
Halley's Comet returns to the inner solar system every _____ years.
76
The left (lit up) side of the moon seems to shrink
Waning
The term ______ refers to when the sun is COMPLETELY blocked from view.
totality
What was the name of the model proposed by Nicolas Copernicus that said that the SUN was the center of the universe and not the Earth?
Heliocentric Model
Name the four jovian planets.
Jupiter, Saturn, Uranus, Neptune
When does a meteoroid become a meteorite?
When it breaches Earth's atmosphere and reaches the surface.
When you can see more than half of the bright side of the moon it's called a _________ moon.
gibbous
True or False. An eclipse can only happen during a full moon or new moon phase.
true
What was the main objective of the Apollo Missions back in the 1960's and 1970's?
To travel to the moon