Our Solar System
Inner Planets
Outer Planets
The Sun
Stars
100
This word comes from the Greek word that means "the wanders."
What is planets?
100
Due to its irregular shape and unclear orbit, Pluto has been reclassified as this.
What is a dwarf planet?
100
A ball of ice, dust, and gases that orbit the sun.
What is a comet?
100
This is the hottest part of the sun and is found at the center.
What is the core?
100
True or false...The sun is extremely large and hot compared to other stars.
What is false?
200
He thought the Earth was the center of our solar system.
Who is Ptolemy?
200
These inner planets are made of rock, are more dense, and are smaller than the outer planets.
What are terrestrial planets?
200
A large, rocky object that revolves around the sun.
What is an asteroid?
200
These are cooler, darker areas located on the sun's surface.
What are sunspots?
200
This is the unit used by scientists to measure vast distances in space.
What is a light year?
300
His model is the one we use today.
Who is Kepler?
300
These "Gas Giants" are farther from the sun, have rings, and have really thick atmospheres.
What are jovian planets?
300
A small piece of rock and metal that travels around the sun.
What is a meteoroid?
300
This is the outer most part which surrounds the sun and is extremely hot.
What is the corona?
300
The hottest stars are these colors.
What are blue and white?
400
He was the first to say the Earth and other planets revolve around the sun.
Who is Copernicus?
400
This planet appears to be spinning on its side.
What is Uranus?
400
A rock that passes through Earth's atmosphere and causes a bright streak of light known as a "shooting star."
What is a meteor?
400
These are ribbons of gas explosions that jut out for millions of miles above the sun's surface.
What are prominences?
400
A group of billions of stars, gas, and dust that are fairly close together in space.
What is a galaxy?
500
This word, meaning oval, describes the shape of the path the planets follow around the sun.
What is elliptical?
500
This planet is the hottest, and although its year is shorter than Earth, it has the longest day.
What is Venus?
500
A rock from space that passes through the atmosphere and hits Earth.
What is a meteorite?
500
This inner part of the sun has currents that bring energy to the sun's surface.
What is the convection zone?
500
The Milky Way Galaxy is this type of galaxy.
What is spiral?
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