The Sun
A common gas in the sun
Hydrogen or Helium
Name a greenhouse gas.
Methane, carbon dioxide
The shape of Earth's orbit
ellipse
What is the Big Bang theory?
That the universe started from one single explosion
Which sphere refers to all the bodies of water on Earth?
Hydrosphere
How sun creates energy
nuclear fusion
Describe the greenhouse effect...
Gases that trap the heat in the atmosphere
What word refers to the changes in the shape of a planet's orbit?
Eccentricity
What does a spectral line show?
Which element is absorbing the light
What is the name for the farming of only 1 crop in a large area?
Monoculture
A burst of electromagnetic energy from our sun
Solar flare
Name a fossil fuel.
gas, coal, oil
The most likely cause of seasonal changes and refers to the changes in Earth's tilt
Obliquity
Is the universe expanding or contracting?
Expanding
What is combustion?
A chemical reaction that makes heat energy
What stage our sun is in now
Main stage
What is a carbon sink?
a place that absorbs and stores carbon
What is the wobble of the Earth called? (When the axis of the Earth changes from side to side)
Precession
The shift of energy towards the red end of the spectrum is called.....
redshifting
Describe the movement of a divergent plate boundary.
The plates move apart
What the sun's last stage will be...
White Dwarf
What is the Albedo Effect?
The amount of light that is absorbed or reflected by a surface
What is something the Milankovitch cycles can cause?
seasons, climate changes, Ice Ages
Hubble's Law shows that galaxies farther away from Earth are moving ......
faster
Where are the newest rocks on the Atlantic seafloor located?
In the middle of the ocean