Universe
Orbits
Seasons
The Moon
Tides
100
Theory stating the universe is expanding from a single point.
What is the Big Bang theory?
100
Planets orbit the sun in an ellipse.
What is Kepler's 1st law?
100
June 21
What is the summer solstice ing the NH?
100
28 days
What is the orbital period of the moon?
100
Occur on two sides of the Earth in line with the moon
What are high tides?
200
Theory that states the universe has always been same size with new matter constantly being added.
What is the steady state theory
200
Aphelion
What is the point a planet's orbit is farthest from the sun?
200
Spring Equinox
What is the day when the sun is over the equator and each hemisphere experiences 12 hrs. daylight?
200
Moon phases created when sun, moon and Earth are in a straight line.
What are full and new moons?
200
Tides created when the sun, moon and Earth form a right angle
What are neap tides?
300
Theory stating time and space are relative.
What is the theory of relativity?
300
A planet's velocity is constantly changing to sweep out equal areas over equal times.
What is Kepler's 2nd law?
300
Tilt and orbit
What causes seasons?
300
Growing moon less than half illuminated
What is a waxing crescent?
300
Moon's Gravity and Inertia
What causes the tides?
400
Redshift and Background Radiation
What are the two evidences supporting the Big Bang Theory?
400
Gravity and Inertia
What are the two forces that cause planets to follow a set orbit?
400
365 days
What is amount of time the Earth takes to complete a revolution?
400
Moons created when sun, moon and Earth form a rt. angle?
What are quarter moons?
400
Spring Tides
What is a tide caused when sun, moon and Earth are in a straight line?
500
Electromagnetic Spectrum
What is array of wavelengths constituted by energy waves?
500
Gravity
What is the force between every object of mass?
500
Longest day of the year in Southern Hemisphere
What is the Winter Solstice?
500
Waning Gibbous
What is a shrinking moon that is more than half illuminated?
500
Highest high tides and lowest low tides
What are spring tides?
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