Planets
The third planet from the sun
Earth
What do we call the distance between the Earth and the Sun?
An astronomical unit
What is the most abundant element in the atmosphere?
Nitrogen
Freeze-thaw cycles are an example of which type of weathering?
Physical
In Einstein's famous equation, E=MC2, what does C stand for?
The speed of light
The most common example of a dwarf planet
Pluto
What do we call the event when a star explodes and dies?
A supernova
What layer of the atmosphere do we find the ozone layer?
The stratosphere
The densest state of water is...
Liquid water
The center of a black hole is called...
The singularity
This planet rotates on its side
Uranus
What is the best theory for how the universe was formed?
The big bang
When we increase our altitude, air pressure does what?
Decrease
How was the Grand Canyon formed?
Water erosion over millions of years.
The lightest element on the periodic table is...
Hydrogen
This planet has very strong winds and is very cold
Neptune
One. The sun.
True or false: When air becomes warmer, thermal energy is decreased.
False
How many atoms of hydrogen (H) are in this equation?
2H2O + 3O2 + C6H12O6
16
The kind of energy stored in a battery
Chemical energy
The solar system's gas giants are...
Jupiter, Saturn, Uranus, Neptune
The force that holds our solar system, galaxies, and everything else together.
Gravity
decreases
Rust forms when what three things are combined?
Oxygen, Iron, and Water
The addition of greenhouse gases to the atmosphere causes...
Our planet to increase in average temperatures over long periods of time.