Galaxies
This type of galaxy has tightly wound arms.
what is a spiral galaxy?
This is the closest star to Earth.
what is the Sun?
When the Southern Hemisphere experiences summer, the Northern Hemisphere is experiencing this season.
What is winter?
These two main celestial bodies influence tides on Earth.
What are the Moon and the Sun?
The HR diagram plots stars based on these two characteristics.
what are temperature and luminosity?
These types of galaxies are oval shaped with no arms.
what is an elliptical galaxy?
This is the name for the theory in which the universe was created from an explosion.
what is the Big Bang Theory?
This is the degree at which the Earth’s axis is tilted.
What is 23.5°?
These extreme tides occur when the Earth, Moon, and Sun are in a straight line, increasing the gravitational pull.
What are spring tides?
These stars are stable and located on a diagonal belt of the HR diagram.
What are main sequence stars?
These types of galaxies are small and patchy, with no particular shape.
What is an irregular galaxy?
This object is in the center of most galaxies and has a gravitational pull that is so strong not even light can escape it.
What is a black hole?
This is what causes seasons to occur.
What is the tilt of the axis OR the revolution of Earth?
This phenomenon occurs when the Sun and Moon’s gravitational forces are at right angles, causing the least difference between high and low tides.
what are neap tides?
This is the color of the hottest stars.
What is blue?
These types of galaxies are some of the oldest galaxies in the universe?
What are elliptical galaxies
This galaxy is home to Earth
What is the Milky Way Galaxy?
You will experience this season when you are in the hemisphere that is closest to the sun.
What is summer?
A single beach on Earth would experience this many high tides per day.
what are 2?
This yellow star has a nickname of "the North Star."
What is Polaris?
These are at the center of most galaxies.
What are black holes?
These type of galaxies do not have a supermassive black hole at it's center.
What are irregular galaxies.
This occurs because Earth's orbit around the Sun takes approximately 365.25 days, requiring an extra day every four years to keep the calendar aligned.
what are leap years?
During these types of tides, Earth will experience the highest high tides and the lowest low tides.
What are spring tides?
This red giant is roughly 3,000oC and is anywhere between 20-50 times brighter than the sun.
What is Mira?