The Universe
The distance which light travels in a year
Light Year
Our solar system is located
Milky Way
An imaginary line that splits the Earth into two hemispheres
The Equator
The movement of the Earth around the Sun
Orbit
When the sea is at its lowest
Low tide
Groups of galaxies
Clusters
The third planet from the sun
The second brightest celestial body that we can see in our sky, after the sun
The Moon
How long does it take the Earth to orbit the sun?
365
The point at which the sea is at its highest within the cycle of tides
High tide
Explains the expansion of the universe
The Big Bang Theory
Smaller spheres which rotate around the sun
The name of the Earth's layer of water
Hydrosphere
The point where the Earth is farthest from the sun?
Aphellon
The name for the eclipse of the Moon?
Lunar Eclipses
3 Shapes of the galaxies
Irregular, Spiral, Elliptical
Similar in size to asteroids but are made up of a mix of rock and ice
Comets
This makes the Earth unique
It is the only proper planet in the Solar System on which life can prosper
Consequences of the Earth's orbit? (There are two)
Seasons and lengths of days
This happens when the moon is positioned between the Sun and the Earth
Eclipse of the Sun (Solar eclipse)
Nuclear reactions give off 3 things
Heat, light, and particles
Put the solar systems's planets in order based on distance from the sun. Start with the nearest one
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
How long does the Moon's orbit last? What about its Rotation?
27.3 days
What angle is the Earth's rotation axis at?
23.5
What causes periodical rises and falls in the sea levels as a result of the gravitational pull of the Moon?
Gravitational pull