Planets
There are ____ planets in our Solar System.
What is 9?
A large group of stars that cluster together in one area is called...
What is a galaxy?
The star closest to Earth is...
What is the Sun?
Space rocks are called...
What are asteroids?
Earth has ____ moon(s)...
What is one?
The inner planets are...
What are Mercury, Venus, Earth, & Mars?
Our solar system is in this galaxy...
What is the Milky Way?
All stars are made of gases, but they differ in...
What is size, color, and brightness?
The part of the solar system, between Mars and Jupiter, where many asteroids cluster together as they orbit the sun is called...
What is the asteroid belt?
Jupiter has ____ known moons that orbit it.
What is 63?
The outer planets are...
What are Jupiter, Saturn, Uranus, & Neptune.
The nearest spiral galaxy to the Milky Way is...
What is the Andromeda Galaxy?
Ptolemy was one of the first people to describe star patterns that are called...
What are constellations?
_________ are made mostly of ice and dust.
What are comets?
The inner planets share this characteristic...
The outer planets share this characteristic...
What is a hard, rocky surface?
What is mostly made of gas?
Scientists think that there are ________ of galaxies in the universe.
What is billions?
Astronomers say that there are _____ constellations that can be seen in the night sky.
What is 88?
This Famous comet is visible from Earth with the naked eye every 76 years.
What is Haley's Comet?
Pluto was reduced in classification to a dwarf planet in 2006 because..
What is scientists decided it did not have all the characteristics to be classified as a planet?
Three galaxy shapes are...
What are spiral, elliptical, & irregular?
Ursa Major and Ursa Minor contain seven stars that form...
What are the big and little dippers?
Because small pieces of these burn brightly and look like a white trail across the sky, people call them "shooting stars".
What are meteors?