Earth's layers
What is the very outer layer of the Earth?
The crust
What layer contains plate tectonics?
The lithosphere
What event ended the Cretaceous period?
An asteroid
What is the largest planet?
Jupiter
When did the Big Bang occur?
About 13.8 billion years ago
What layer is a part of the crust and upper mantle?
The lithosphere
In what layer do convection currents occur?
In the mantle
Yucatan Peninsula
What planets have rings?
Jupiter, Saturn, Uranus, and Neptune
A wave is moving towards you. What color will it be?
Blue
What is the core made of?
Iron and nickel
How does warm air behave? How does cold air behave?
Warm air will rise and cold air will sink
What metal was left behind from the asteroid that hit Earth during the Cretaceous period?
Iridium
What are two pieces of evidence that the universe is expanding?
Cosmic background radiation and the redshift of distant galaxies
What does the principle of cross-cutting concepts state?
The intrusion or fault is younger than the layers it cuts through
What are the chemical (compositional) layers?
Crust, mantle, core
What is a slab-pull movement?
When a oceanic plate slides/sinks into Earth's mantle pulling the plate tectonic with it
When does an atom become unstable? And what is it called?
If there are more or less protons than neutrons; it is called an isotope
What is the correct order of the planets including the asteroid belt?
Mercury, Venus, Earth, Mars, Asteroid belt, Jupiter, Saturn, Uranus, Neptune
What causes seasons on Earth?
Which layer is solid but can behave like a plastic/fluid, which helps move the plate tectonics?
What are mantle plumes?
What does the Doppler effect state?
As a source is moving towards you, the frequency will increase. As a source is moving away from you, the frequency will decrease
What two elements were first formed during the Big Bang?
Hydrogen and helium
What type of wave on the electromagnetic spectrum is the shortest?
Gamma rays