Biology
This organelle stores the cell’s genetic information in eukaryotes.
What is the nucleus?
In chemistry, “pH” stands for the negative logarithm of the concentration of this ion.
What is the hydrogen ion (H⁺)?
This force pulls objects toward the center of the Earth.
Gravity
This is the star at the center of our solar system.
What is the Sun?
This fossilized substance is formed from ancient tree resin.
What is amber?
This organelle contains its own circular DNA.
What is the mitochondrion?
This bond forms through electrostatic attraction between oppositely charged ions.
What is an ionic bond?
This phenomenon explains why an object continues moving unless acted on by a net force.
What is inertia?
This planet is known for having the most prominent ring system.
What is Saturn?
This layer of the Earth lies directly beneath the crust.
What is the mantle?
This process converts RNA into a polypeptide chain.
What is translation?
The equation of the ideal gas law?
pV = nRT
This law states that for every action, there is an equal and opposite reaction.
What is Newton’s Third Law?
Who is Buzz Aldrin?
Most earthquakes are caused by the sudden movement of these along faults in the Earth’s crust.
What are tectonic plates?
This metabolic cycle, also known as the citric acid cycle, is a central part of cellular respiration.
What is the Krebs cycle?
When balancing a redox half-equation in acidic solution, this molecule is added to balance oxygen atoms.
What is water (H₂O)?
This effect causes light from a moving source to shift toward longer or shorter wavelengths.
What is the Doppler effect?
This boundary marks the region beyond which a star’s light cannot escape.
What is the event horizon?
From the following dinosaurs — Tyrannosaurus rex, Triceratops, Stegosaurus, and Brachiosaurus — which two lived during the same geological period?
What are Tyrannosaurus rex and Triceratops?
The recombination of these gene segments allows the immune system to generate a vast diversity of antigen receptors.
What are V, D, and J genes?
Up, down, charm, strange, top, and bottom are the six types of this fundamental particle.
What are quarks?
This theory describes gravity not as a force, but as the curvature of spacetime.
What is general relativity?
Earth, Neptune, Mercury, Saturn, Mars, Uranus, Venus, and Jupiter are these eight objects—name them in order from closest to farthest from the Sun.
What are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune?
This father-and-son scientific pair helped identify the asteroid impact responsible for the dinosaur extinction.
Who are Luis Alvarez and Walter Alvarez?