Small, rocky planet that is closest to the Sun.
What is Mercury?
The predictable path an object takes as it revolves around the Sun.
What is an Orbit?
The closest star to planet Earth.
What is the Sun?
A large grouping of stars in space.
What is the Galaxy?
When a chunk of space rock enters Earth's atmosphere and burns up, it creates a streak of light in the sky.
What is a Meteor, or A Shooting Star?
Any of the large celestial bodies that revolve around the Sun in the solar system.
What are Planets?
This force keeps the planets in orbit around the Sun and stops us from floating off Earth.
What is gravity?
A celestial body that revolves around a planet.
What is the Moon?
A large ball of gas in space that produces its own light and heat.
What is a Star?
The region between Mars and Jupiter where many asteroids are found.
What is the Asteroid Belt?
These four planets are called the "gas giants" because they are made mostly of gas and are much larger than the inner planets. Name two of them.
What are Jupiter & Saturn?
A ball of ice, dust, and rock that forms a tail as it approaches the Sun.
What is a Comet?
The name of the galaxy that Earth is in.
What is the Milky Way?
A system of planets and other bodies that orbit a star.
What is the Solar System?
Which of the following space rocks is most likely to leave a huge crater if it hits Earth?
What is an Asteroid?
Planets with solid cores and rocky surfaces.
What are Inner Planets?
It's not a planet, but this space object can crash into Earth and leave a crater. Some are small as pebbles, others as big as houses.
What is a meteoroid or meteor?
A group of stars that form a pattern
What is a Constellation?
A region in space with gravity so strong not even light can escape.
What is a Black Whole?
The solid, frozen core of a comet, often described as a "dirty snowball".
What is the nucleus?
Planets that are large, gaseous, and most distant from the Sun.
What are Outer Planets?
This rare event happens when one space object moves in front of another and blocks its view.
What is an eclipse?
A huge explosion at the end of a star's life.
What is a SuperNova?
This is the name for the invisible boundary around a black hole. Once something crosses it, it cannot escape-not even light.
What is the event horizon?
An irregularly shaped rocky or metallic object that orbits the Sun and is much smaller than a planet.
What is an Asteroid?