Distance In Space
The name of the distance from the Earth to the Sun.
What is the Astronomical Unit?
The galaxy we live in.
The system containing the Sun, our Earth and Moon, and the surrounding planets.
What is The Solar System?
There are ____ terrestrial planets in our Solar System.
What is four?
Stars are composed of __.
What is gas?
Light travels at _______ km/s.
What is 300,000?
A galaxy is made up of ____________________.
What are stars, gas, and dust?
The person to first propose the idea of a heliocentric model of the solar system.
What is Mars?
A cold star.
What are Red Stars.
One light year is equal to ______ astronomical units.
What is 63,241?
The most abundant element in the Universe.
What is Hydrogen?
The two models of the solar system one containing the Earth at the center and the other containing the Sun at the center.
What are the Geocentric and Heliocentric Models?
"Earth's Twin".
What is Venus?
What is Helium and Hydrogen?
The earth is ___________ light years away from the Andromeda Galaxy.
The galaxies shaped like a pinwheel, sphere or oval, or unusually shaped.
When an object is viewed from different places the place of it changes.
What is Parallax?
Around 3.5 billion years ago, ______________ appeared in Earth’s ocean.
What is Photosynthesis?
In the Sun's core, gases are heated to __________ degrees Celcius.
What is 15,000,000?
A parsec is ~____ light years.
What is a Supercluster?
Kepler's Three Laws of Planetary Motion.
What are planets moved in an ellipse instead of a perfect circle, planets speed up near star, slow down away from star, and planets spend more time away from star, less time near star
Tectonic plates are only on this planet.
What is Earth?
The measure of a star’s brightness as seen from Earth.
What is Apparent Magnitude?