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The Solar System

Term/QuestionDefinition/Answer
How many planets don't have moons? 2 planets don't have moons.
How did the Solar System form? Spinning cloud gas,dust the Sun gravity pulled all the gas and dust into the center of the cloud. Collapsed and became flatter. Temperatures rose and heat,pressure built up in the center. Nuclear the Sun. Leftover matter cooler regions the planets.
How are planets close to the Sun like? They are small and rocky, because they could get a lot of packed-together solid matter, being close to the Sun.
How are planets far away from the Sun like? Because of the Sun's gravitational pull, they could not get many solids, but managed to hold onto lots of spread-out gases, so those planets are very large and not very solid. Many also have rings around them.
What holds the planets in their orbits? The Sun's gravitational pull.
The Solar System The Sun and all bodies that travel, or revolve, around it.
Moons Natural satellites that orbit a planet.
Asteroid A small, rocky object that orbits the Sun.
Comet A small, orbiting body made of dust, ice and frozen gases.
Planets Large bodies that orbit the Sun.
A comet has what orbit? A long, elliptical orbit.
Meteoroid A small, metallic body traveling through space.
Meteor A chunk of matter that enter's Earth's atmosphere and is heated by friction in the air, which causes a strike of light; shooting star
Meteorite Chunks of meteor matter falling to the ground.
What is the Earth and Solar System part of? The Milky Way Galaxy
What causes most meteor showers? Leftover matter from passing comets.
Where are most asteroids in the Solar System? The Asteroid Belt, in between the orbits of Mars and Jupiter
How did asteroids form? From leftover matter unable to become planets because of the strong gravitational pull of Jupiter, or planets that collided together and broke into pieces of rock.
What is in the center of a comet, made of solids that melt by the Sun? The Nucleus
What glowing region in a comet is made from the dust and gases of the melting nucleus? The Coma
What is at the end of a comet that forms from the Sun pulling charged particles out of the comet? The Tail
What is the order of a meteor falling, from space to the ground? The meteoroid, the meteor, the meteorite
Created by: 19lkolodchak