Physics
Biology
Chemistry
Earth & Space
Math
100

What force pulls objects toward the Earth?

Gravity

100

What organelle turns nutrients into energy for the cell?

Mitochondria
100

What is the chemical symbol for Hydrogen?

H

100

What is the closest planet to the sun?

Mercury

100

What are the first 3 digits of pi?

3.14

200

What is the SI unit of force?

Newton

200

What molecule carries genetic information?

DNA
200

What is the most abundant gas in the atmosphere?

Nitrogen

200

What do we call a large mass of ice that moves slowly over land?

Glacier

200

What is the area of a circle with radius 4?

16

300

What term describes the rate of change of velocity?

Acceleration

300

What is the largest human organ?

Skin

300

What state of matter has definite volume but not definite shape?

Liquid
300

What is the term for the point on Earth's surface directly above an earthquake's origin?

Epicenter

300

What do you call two lines that never intersect?

Parallel Lines

400

What is the term for the bending of light as it passes through a different medium?

Refraction

400

What organelle is responsible for packaging and shipping proteins within the cell?

Golgi Apparatus

400

What is the name for a positively charged ion?

Cation

400

What is the name for the collapsed core remnant left after a massive star explodes as a supernova?

Neutron star (or black hole)

400

What is the value of sin(30°)?

1/2

500

What term describes the phenomenon where a particle's exact position and momentum cannot both be known precisely?

Heisenberg's Uncertainty Principle

500

What term describes the process by which a single mRNA transcript can produce different protein products through selective exon inclusion?

Alternative Splicing

500

What is the name of the rule stating atoms tend to form bonds until they have eight electrons in their valence shell?

Octet Rule

500

What term describes the gradual wobble of Earth's rotational axis over a ~26,000-year cycle?

Axial Precession

500

What theorem states that every polynomial of degree n has exactly n complex roots, counted with multiplicity?

Fundamental Theorem of Algebra

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