20 Questions
What is the highest cloud in Earth's atmosphere?
Mesosphere
Which layer of the Earth is tasked with holding all the air plants need for photosynthesis and animals need to breathe?
Troposphere
What is the composition of the oceanic crust?
Dense iron, magnesium, and silicate rocks
What is the main component of the upper mantle?
Silicate rocks rich in iron and magnesium
What is the densest layer of the Earth?
Core
Which celestial body is known for consisting of ice, dust, and rocky material?
Comets
What is the basic unit of all matter?
Atom
What is a group of cells with specialized function called?
Organs
Which layer of Earth gets colder with altitude?
Stratosphere
What is a subset of the hydrosphere that contains frozen water?
Cryosphere
What event allowed all the universe's known matter and energy to spring from some ancient and unknown type of energy?
The big bang
During which phase of the big bang were light elements like deuterium, lithium, and helium created?
Phase 4
What did the Wilkinson Microwave Anisotropy Probe (WMAP) measure?
Differences across the sky in the cosmic microwave background (CMB)
According to the encounter hypothesis, what happens when a rogue star passes close to the sun?
Gas is removed from both cosmic objects
What does the nebular hypothesis propose as the mechanism for planet formation?
Self-gravity contracts a gas cloud
Which region of the Milky Way galaxy is filled with cold molecular hydrogen gas?
Inner region
What are the major types of planets based on their composition?
Terrestrial, gas giant, ice giant, dwarf, exoplanet
What characteristic of Earth supports various life forms by acting as a solvent?
Water
What key function does Earth's magnetic field serve?
Blocks storms of charged particles from the sun
What layer of Earth's atmosphere merges with the solar wind?
Exosphere
Test your knowledge on the origin and structure of the universe, including the phases of the Big Bang theory from the boiling 'soup' with elementary particles to the creation of light elements. Explore the events that shaped the early universe.
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