Biology
Chemistry
Physics
Earth
Astronomy
100

This photosynthetic pathway, named after its discoverers, is also known as the light-independent pathway.

What is the Calvin-Benson Cycle?

100

This group 14 element has the highest melting point.

What is carbon?

100

In the Standard Model of Particle Physics, photons and gluons are classified as this type of particle.

What is the boson?

100

This technology is predominantly used for saltwater desalination in the United States.

What is reverse osmosis?

100

This substance, first postulated by Fritz Zwicky, is thought to be responsible for aberrations between theorized and observed orbital velocities of galaxies.

What is dark matter?

200

The term used to describe a virus that attacks bacteria.

What is a bacteriophage?

200

In the excitation of metal ions by light, light of a high enough frequency can cause the excited electrons to be ejected from the metal via this effect.

What is the photoelectric effect?

200

According to this principle, an object partly or completely submerged in a fluid will experience a buoyant force equal to the weight of the fluid the object displaces.

What is the Principle of Archimedes?

200

This allotrope of carbon is known for its strong bonds within the plane, but weak bonds between planes.

What is graphite?

200

If a certain planet has four times the mass of Earth, but the acceleration due to gravity on the planet’s surface is the same as that of Earth, this is the ratio of the planet’s radius to the Earth’s radius.

What is 2?

300

When a phylogenetic tree has the fewest number of evolutionary events possible, it is said to embody this principle of simplicity.

What is parsimony?

300

Ceramic materials typically belong to this class of solid structure.

What is network solid?

300

The relationship between the magnetic field contribution and its source current element is described by this law.

What is the Biot-Savart Law?

300

Light takes longest to travel from the Sun to the Earth during this month.

What is July?

300

Matter across the universe is the most commonly found in this state.

What is plasma?

400

This marine genus extinct since the Triassic period has a name, pronounced in accordance with reconstructed Classical Latin like all biological taxa, derived from the Greek words for hollow spine.

What is Coelacanthus?

400

A molecule of ethyne has this many vibrational degrees of freedom.

What are 7 (degrees of freedoms)?

400

The Paschen series hydrogen lines are found in this range of the electromagnetic spectrum.

What is infrared?

400

Of morning, afternoon, evening, or night, lightning is most likely to occur at this time of day.

What is afternoon?

400

The increase in redshift of a galaxy's spectral lines with distance is expressed by this law.

What is Hubble's Law?

500

The deficiency of magnesium causes this disorder in plants, characterized by the leaves turning pale yellow.

What is chlorosis?

500

In this type of isomerism, which is a subset of stereoisomerism, compounds interconvert by rotation of single bonds.

What is conformational isomerism?

500

A liquid, in near contact with a mass significantly hotter than the liquid's boiling point, produces an insulating vapor layer keeping that liquid from boiling rapidly through this phenomenon.

What is the Leidenfrost Effect?

500

This vesicular basaltic lava sinks in water.

What is scoria?

500

During this period about 3.9 billion years ago, evidence suggests that the Earth was undergoing a cataclysmic convulsion in which the surfaces of the Moon, the Earth, Mercury, Venus, and Mars were heavily impacted by fragments left over from formation of the planets.

What is late heavy bombardment?