Origin Story
The theory that the universe began as a single point that has been expanding ever since
What is the Big Bang Theory?
The part of a planet's orbit where it passes closest to the sun
What is Perihelion?
The layer of the Sun that radiation cannot escape through so it gets trapped and starts to "boil".
What is the Convection Zone?
The Earth does one of these around the Sun every 365.25 days.
What is a revolution?
A multinational research facility that orbits Earth roughly every 90 minutes.
__________ billion years ago, the solar system formed.
What is 4.6?
A planet moves slowest at this point in its orbit.
What is Aphelion?
All of the energy from the Sun that reaches the Earth arrives as solar radiation which is part of a large collection of energy called the ___________________.
What is the Electromagnetic Spectrum?
This day occurs on December 21 when the Northern Hemisphere is tilted away from the Sun.
What is the Winter Solstice?
The amount of time it takes for light from the Sun to reach the Earth.
What is 8 minutes?
The idea that a spinning cloud of dust flattened into a protoplanetary disk and became a solar system.
The farther away a planet is from the Sun, the longer it takes to complete its orbit.
What is Kepler's Third Law?
Humans can't detect this wavelength with our eyes but we can feel it as heat.
What is infrared radiation?
What is a Lunar Month?
A planet that is blue due to methane in its atmosphere and rotates on its side.
What is Uranus?
The process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy.
What is nuclear fusion?
The force of gravity between two objects increases with the mass of the objects and how close they are to each other.
The Law of Universal Gravitation
This type of EM radiation can cause skin cancer, cataracts, and immune system damage in humans.
What is UV radiation?
This occurs when the Sun, Moon, and Earth are aligned, pulling on the Earth in opposite directions.
What is a Spring Tide?
The name we give to an asteroid once it falls into Earth's atmosphere.
What is a meteoroid?
Planets made of gases and may have a small, solid core.
What are Jovian Planets?
Two planets move farther away from each other so this decreases.
What is gravity?
This layer of the sun is named ________________ because it is where the light we see with our eyes originates.
What is the photosphere?
This happens twice a year when the days and nights are equal lengths.
What is an Equinox?
The way that radiation reaching us from other planets changes when it moves away from us.
What is redshift?