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NCTS Solar System

QuestionAnswer
An asteroid that hits the ground Meteorite
Man who made accurate observations without a telescope Tycho Brahe
Created Laws of Planetary Motion Johannes Kepler
Name for "sun-centered" model Heliocentric
Discovered 4 major moons on Jupiter Galilei Galileo
Elliptical Orbit (law) Kepler's First Law
When close to sun, planets move faster (law) Kepler's Second Law
An asteroid that enters the Earth's atmosphere Meteoroid
Two planets without moons (in order) Mercury and Venus
Category that includes Jupiter, Saturn, Uranus, and Neptune Gas Giants
Streak of light produced after a meteoroid enters Earth's atmosphere Meteor
Introduced a sun-centered model Nicolaus Copernicus (in 1543)
Category that includes Mercury, Venus, Earth, and Mars Terrestrial Planets
The point when planets are closest to the sun Perihelion
Remnants of solar system formation made up of icy bits of rock and dust Comets
The point when planets are farthest from the sun Aphelion
Where is the asteroid belt located? Between Mars and Jupiter
What is the smallest planet? Mercury
What is the most massive planet? Jupiter
What is the brightest planet? Venus
What makes it possible for life on Earth? liquid water
What is unique about Saturn? it has a lot of rings made of chunks of ice and rock
What is unique about Uranus? Uranus rotates on its side as if it has been knocked sideways
What do the Gas Giants have in common? Their size, rings, and moons.
What is Kepler's 3rd law? Planets closer to the sun have a shorter orbital period that planets farther from the sun. (Ex. Mercury will go around the sun faster than Jupiter.)
Why do we have a leap year? We have a leap year because it take the Earth 365 AND 1/4 rotations to go around the Sun each year. Every 4 years means we have completed an extra rotation, which adds a day.
Created by: dsteffey
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