TEXTBOOK TOUR
According to the Planck satellite in 2015, this is how much of the known universe is made up of dark energy.
What is 68.5%?
In light years, this is how far away the star Aldebaran is.
What is 65?
This is the extension of the Earth's equator into space.
What is the celestial equator?
The four outer planets may be known by this.
What are the gas (or ice) giants?
This is also known as an educated guess.
What is a hypothesis?
Puck, a moon of Uranus, has a radius of this many km.
What is 81 km?
This is the temperature (in K) of a star with a spectral type of F0.
What is 7200?
This is the line where the sky meets the ground.
What is the horizon?
This is what the letters AU stand for.
What is astronomical unit?
This is a theory proven over time.
What is a law?
This chapter would tell us the most about our star, the sun.
What is 12?
This metric prefix represents one million.
What is mega-?
This is the celestial point in space directly over your head.
What is the zenith?
The known universe is believed to be this old.
What is 13.8 billion years old?
This is the first step of the scientific method.
What is observation or identify the problem?
This is the equatorial radius of Jupiter in Earth units.
What is 11.21?
This is 300 in scientific notation.
What is 3 x 10^2?
This is the extension of the north pole into space.
What is the north celestial pole?
This universal force is responsible for the attraction between two or more massive objects.
What is gravity?
The last step of the scientific method includes this.
What is to publish or to share your results?
This chapter would tell us the most about the Milky Way Galaxy.
What is 16?
This is the name of Pluto's largest moon.
What is Charon?
This is the apparent path of the sun around the Earth.
What is the ecliptic?
A light year is this many kilometers.
What is 10 trillion?
This is what is used to test a hypothesis.
What is an experiment?