Planetary Interiors
What is Earth's Inner Core composed of?
Iron and nickel.
How do planets form an atmosphere?
Volcanic outgassing
Which of the four molecules is NOT a greenhouse gas?
CO2
NO2
CH4
O3
NO2
What are the three states of matter than water can exist in?
Solid (ice), liquid (water), and gas (water vapor)
Why does Earth's interior separate into different layers?
Density.
Which planet in the solar system has the largest volcano?
Mars.
Why is Earth's atmosphere blue?
The atmosphere scatters blue wavelengths of light.
What is the name of the region in space where the distance a planet is from its star allows for liquid water to be stable on the planet's surface?
The Habitable Zone.
How do we know that there are different layers inside the Earth?
By observing seismic waves.
Which planet in the inner solar system has the thickest atmosphere?
Venus.
How do greenhouse gases warm the atmosphere?
Greenhouse gasses absorb and re-emit radiation into the atmosphere, preventing the long-wave radiation emitted from the Earth's surface from escaping the atmosphere
What is the evidence we have for the past existence of liquid water on the surface of Mars?
Presence of river features, deltas and hydrated minerals.
The Earth has 4 main layers. Here are three of these layers: Crust, Inner Core, and Outer Core. Which layer of the Earth is missing from this list?
The mantle.
Below are a list of gasses. Which of the three would you most expect to find outgassing from a volcano?
Water Vapor (H2O)
Sulfur Compounds (SO2 and H2S)
Nitrogen Compounds (N2 and NO2)
Oxygen (O2)
Carbon Dioxide (CO2)
Methane (CH4)
Carbon Monoxide (CO)
Water vapor (H2O)
Carbon Dioxide (CO2)
Sulfur Compounds (SO2 and H2S)
What four things can happen to light as it interacts with a material?
What is: absorbed, reflected, refracted, and transmitted.
How could a planet have liquid water if it exists outside of the habitable zone?
Has a warm enough atmosphere/greenhouse gases