Install QuizVortex App
Play offline · Home screen icon · Faster loading
Only true science geniuses need apply — 20 expert-level science quiz questions and answers across every subject.
1. What is the outermost layer of the sun, visible as a faint glow during a total solar eclipse, called?
💡 The corona is the sun's extended outer atmosphere, visible to the naked eye only during a total solar eclipse.
2. What is the term for a group of similar cells performing a specific function in the body called?
💡 Tissue is a group of similar cells that work together to perform a specific function within the body.
3. What is the term for a substance that speeds up a reaction by lowering its activation energy without being consumed?
💡 A catalyst increases the rate of a chemical reaction by lowering the activation energy, without being used up itself.
4. Whose double-slit experiment demonstrated the wave-particle duality of light?
💡 Thomas Young's double-slit experiment in 1801 showed that light exhibits both wave-like and particle-like properties.
5. Which physicist developed the equation E=mc², relating mass and energy?
💡 Albert Einstein's famous equation shows that mass and energy are interchangeable and related by the speed of light squared.
6. Which particle is responsible for carrying the electromagnetic force?
💡 Photons are the force-carrying particles of the electromagnetic force, including visible light and other radiation.
7. What is the theoretical minimum temperature at which molecular motion stops called?
💡 Absolute zero represents the theoretical point where particles have minimal kinetic energy and motion effectively stops.
8. Which planet's extreme axial tilt of about 98 degrees causes it to essentially spin on its side?
💡 Uranus's unusual 98-degree axial tilt makes it appear to roll along its orbital path rather than spin upright like other planets.
9. What is the term for the energy stored in the chemical bonds of a substance called?
💡 Chemical energy is a specific type of potential energy stored within the bonds of chemical compounds.
10. What is the name of the process by which unstable isotopes emit radiation to become more stable called?
💡 Radioactive decay is the spontaneous process by which unstable atomic nuclei lose energy through radiation emission.
11. Which type of bond gives water its unique properties, such as high surface tension?
💡 Hydrogen bonds between water molecules create strong intermolecular attraction, giving water its high surface tension and other unique properties.
12. What is the name of the process by which the body's cells generate energy in the absence of oxygen called?
💡 Anaerobic respiration allows cells to produce energy without oxygen, though it's less efficient than aerobic respiration.
13. What is the process by which the body maintains a stable internal environment called?
💡 Homeostasis is the broad process by which organisms maintain stable internal conditions, including temperature and pH.
14. Which type of rock forms when existing rock is transformed by intense heat and pressure?
💡 Metamorphic rock forms when existing rock is altered by intense heat, pressure, or chemically active fluids, without melting completely.
15. What is the name of the boundary layer where the Earth's outer core meets the mantle called?
💡 The Gutenberg Discontinuity marks the boundary between the Earth's mantle and its liquid outer core.
16. Whose work on inheritance patterns using fruit flies led to the chromosomal theory of heredity?
💡 Thomas Hunt Morgan's experiments with fruit flies demonstrated that genes are located on chromosomes.
17. Which scientist is credited with discovering the electron's charge through the oil-drop experiment?
💡 Robert Millikan's oil-drop experiment in 1909 precisely measured the charge of a single electron.
18. Which scientist's law describes the relationship between the pressure and volume of a gas at constant temperature?
💡 Boyle's Law states that the pressure and volume of a gas are inversely related when temperature is held constant.
19. What is the name of the process by which the immune system mistakenly attacks the body's own healthy cells called?
💡 An autoimmune response occurs when the immune system fails to distinguish the body's own cells from foreign invaders, attacking healthy tissue.
20. Which fundamental force is responsible for radioactive beta decay?
💡 The weak nuclear force governs radioactive beta decay, in which a neutron transforms into a proton, electron, and antineutrino.