intergalactic PLANETary....PLANETary intergalactic
What planet is closes to the sun?
Mercury
This causes night and day.
What is the Earth's rotation on it's axis.
What is gravity?
A fundamental force between two objects with mass.
What holds the planets in our solar system to their orbits?
The Sun
The imaginary line that connect the north and south poles of the Earth.
What is Axis.
What planet is closes to earth?
Venus
The seasons are caused by this...
What is Earth's revolution around the sun.
Define Rotation
The act of a planet or object spinning on its axis
What is the sun mostly made of?
What is hydrogen and helium
A hemisphere is?
Half of a sphere.
What are the characteristics of the outer planets?
They are very large.
They have ring systems.
They are made of mostly gas and liquid.
The distance from the Sun to Earth
What is an Astronomical Unit (AU)
What is the goldilocks Zone?
The imaginary zone in a solar system that a planet could have water and support life.
Also known as the habital Zone
The theory that the Earth was the center of the solar system was called Geocentric. What is the theory that the Sun is the center of the solar system called?
Heliocentric
What is a natural satellite?
A celestial body in orbit around a planet.
(moon)
Name 2 dwarf planets in our solar system.
Pluto
MAKEMAKE
ErisCeres
Haumea
What is the primary force that holds the solar system together?
What is gravity
Define revolution
Not the French revolution
Not the American Revolution
Not the Spanish revolution
The act of a celestial body orbiting another celestial body.
What is the name of the suns visible surface layer?
What is the photosphere
The difference between mass and weight is....
Mass is how heavy an object is and weight is the amount of force applied to an object by gravity.
Name all of the planets in our solar system in order.
What is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune
What 2 planets in our solar system have no moons?
Mercury and Venus
What is weight
The amount of force gravity is exerting on an object.
What is plasma?
A hot fluid like gas with charged particles.
How long is an AU in km?
150 million km