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Science Glossary


Test your knowledge of the following science words or terms

  1. A concentration of mass so compact that it creates a region of space from which not even light can escape.
  2. The branch of zoology that concerns the study of birds.
  3. The nutrient-bearing portion of the egg whose primary function is to supply food for the development of the embryo.
  4. A measurement of the number of cycles of a given process per unit of time.
  5. Any material that resists the flow of an electric current.

  6. The lowest theoretical temperature where all molecular activity ceases.
  7. Energy which a body possesses by virtue of being in motion.
  8. Element with more than one natural form.
  9. The point in the sky that is directly overhead from the perspective of a particular location on the Earth.
  10. A bacterium, virus, or other microorganism that can cause disease.
  11. Forms of an element that have the same number of protons but different numbers of neutrons.
  12. The total set of greenhouse gas emissions caused by an organization, event or product.
  13. A process or set of rules to be followed in calculations or other problem-solving operations, especially by a computer.
  14. Any of the six nonmetallic elements that constitute Group 17 of the periodic table.
  15. The apparent outward force that draws a rotating body away from the centre of rotation.
  16. Small molecules that link together to form a polymer.
  17. The prevailing cosmological model that describes the early development of the Universe.
  18. Tendency of a body to remain at rest or move in straight line.
  19. A book published every year that includes information for that year such as important days.
  20. The deflection of a wave as it passes from one medium to another.
  21. A process in which a section of the earth's crust is folded and deformed by lateral compression to form a mountain range.
  22. A highly magnetized rotating neutron star or white dwarf that emits a beam of electromagnetic radiation.
  23. A chemical element or substance possessing properties of both metals and non-metals.
  24. A negative ion.
  25. The primary female sex hormone.
  26. A substance or treatment of no intended therapeutic value.
  27. A type of plant tissue responsible for the transport of water from roots to aerial parts of the plant.
  28. A type of small organic molecule that has a variety of biological roles but is best known as the building block of proteins.
  29. The sensory membrane at the back of the eye that processes light information to facilitate sight.
  30. An area of space which contains no matter.
  31. The outermost top of the brain.


  1. Black hole
  2. Ornithology
  3. Yolk
  4. Frequency
  5. Insulator
  6. Absolute zero
  7. Kinetic energy
  8. Allotrope
  9. Zenith
  10. Pathogen
  11. Isotopes
  12. Carbon footprint
  13. Algorithm
  14. Halogen
  15. Centrifugal force
  16. Monomers
  17. Big Bang
  18. Inertia
  19. Almanac
  20. Refraction
  21. Orogeny
  22. Pulsar
  23. Metalloid
  24. Anion
  25. Estrogen
  26. Placebo
  27. Xylem
  28. Amino acids
  29. Retina
  30. Vacuum
  31. Cerebral cortex