Kickstart your knowledge with key science terms that begin with K! From ‘kelvin,’ a unit of temperature, to the ‘kinetic’ energy of moving objects, K is kitted out with fascinating words.
We’ve kept it simple, creating a kid-friendly guide that will keep you in the know, with all the K-words explained in a clear, concise manner.
Science Words That Start With K
Here is the list of common science words with K;
- Kinetics
- Kinetic energy
- Kepler’s laws
- Karyotype
- Krebs cycle
- Kilogram
- Kelvin
- Kinase
- Kingdom
- Kinesiology
- Kinase cascade
- Karyotyping
- Karyokinesis
- Kinesin
- Kinematic
- Keratin
- Kaon
- Kelp
- Key enzyme
- Kernel
- Keeling curve
- Knockout
- Kinome
- Karyogamy
- Kymograph
- Ketone
- Kinase inhibitor
- Knockdown
- Kinesin motor protein
- Kinesthetic
- Krypton
- Ketosis
- K-mer
- Key player
- Knowledge
- Kainate receptor
- Kymography
- Karyoplasm
- Krebs’ citric acid cycle
- Kinesiology tape
- Ketoacidosis
- Kilovolt
- Kupffer cell
- Kinetochore
- Kibble balance
- Kappa particle
- Kinetic friction
- Kelvin-Helmholtz mechanism
- Kilojoule
- Karyon
- Kinetic theory
- Kingdom Animalia
- Kolmogorov complexity
- Kinetoplast
- Kipp’s apparatus
- Katakana
- Kinematic equation
- Krebs’ cycle intermediates
- Keratinocyte
- Key factor
- Kinetic molecular theory
- Kinesthetic sense
- Kuiper belt
- Karyopherin
- Ketogenic diet
- Klinotaxis
- Kinetic isotope effect
- Kohonen network
- Kallikrein
- Kinesis
- Kinetic art
- Karyolymph
- Karyosome
- Kupffer cells
- Krebs’ cycle enzymes
- Keratosis
- Key role
- Knockout mouse
- Kinetochore microtubules
- Kinetoscope
- Ketogenic amino acid
- Kinetic stability
- Kinesin-related proteins
- Kissing complex
- Karyoskeleton
- Kinetic model
- Ketoconazole
- Karyomorphism
- Kettle hole
- Kranz anatomy
- Kasha’s rule
- Knockout gene
- Kieselguhr
- Kauri tree
- Karyoplasmic ratio
- Kinesin motor domain
Related: Science Words A to Z
Explore More Science Words:
A – B – C – D – E – F – G – H – I – J – K – L – M – N – O – P – Q – R – S – T – U – V – W – X – Y – Z
Science Words With K (By Grade)
4th Grade Science Words With K:
- Kernel
- Kilogram
- Kinetic
- Koala
- Kelp
- Kingdom
- Keel
- Knoll
- Knuckle
- Keratin
- Kettle
- Kilowatt
- Kite
- Knot
- Kevlar
- Kidney
- Kiln
- Kimono Dragon
- Kyanite
- Kaleidoscope
5th Grade Science Words With K:
- Kinetic Energy
- Krypton
- Karyotype
- Keystone Species
- Knot (speed)
- Kettle Lake
- Kilometer
- Kinematics
- Kinetic Molecular Theory
- Kwashiorkor
- Kerogen
- Kinesiology
- Kelp Forest
- Knobbed Whelk
- Kinkajou
- Karyokinesis
- Kelvin Scale
- Key (map)
- Krebs Cycle
- Karst Topography
6th Grade Science Words With K:
- Kinetic Theory of Gases
- Kingdom (biology classification)
- K-T Boundary
- Kame
- Katabatic Wind
- Kelvin (temperature)
- Kepler’s Laws
- Kilopascal
- Kinesis
- Kinetic Friction
- Kingfisher
- Kirchhoff’s Laws
- Kite Diagram
- Knickpoint
- Koch’s Postulates
- Kriging
- Kuiper Belt
- Kyanite Mineral
- Kneading
- Kernel Density
7th Grade Science Words With K:
- Karyology
- Keratoplasty
- Kilowatt-hour
- Kin Selection
- Kinetic Energy Recovery System
- Kinetochores
- Kleptoparasitism
- Klystron
- Knuckle Joint
- Koch’s Postulates
- Koan
- Komodo Dragon
- Kosher
- Kpc (kiloparsec)
- Kryptonite
- Kubelka-Munk Function
- Kumquat
- Kundt’s Tube
- Kurinji
- Kettle Pond
8th Grade Science Words With K:
- Kalium (potassium)
- Kame Terrace
- Kaolinite
- Kappa Particle
- Karst
- Katabatic Wind
- Katathermometer
- Kelvin-Helmholtz Instability
- Kempe Chain
- Kenetics
- Kerf
- Kestrel
- Ketogenesis
- Kettle Hole
- Keystone
- Kilobyte
- Kinescope
- Kinetic Sculpture
- King-Post
- Kink
Science Words Starting With K (By Subject)
Physics Words That Start With K:
- Kinematics
- Kilogram
- Kelvin
- Kinetic Energy
- Kepler’s Laws
- Kirchhoff’s Laws
- Kinetic Molecular Theory
- Krypton
- K-shell
- Kelvin Bridge
- Kelvin Wave
- Kerr Effect
- Kilovolt
- Kilowatt
- Kinetic Theory
- Klystron
- Knudsen Number
- K-space
- Kugelblitz
- Kundt’s Tube
Chemistry Words That Start With K:
- Ketone
- Krypton
- Kelvin
- Kinetic Energy
- Ksp (Solubility Product Constant)
- Kettle Reaction
- Ka (Acid Dissociation Constant)
- Kilomole
- Kinetic Molecular Theory
- Kopp’s Law
- Kryptonite
- Keto-enol Tautomerism
- Keyhole Limpet Hemocyanin
- Kilogram-molecule
- Kinematic Viscosity
- Kirchhoff’s Laws
- Kjeldahl Method
- Kneading
- Knudsen Flow
- Krypton Fluoride Laser
Biology Words That Start With K:
- Karyotype
- Kingdom
- Kinetochore
- Krebs Cycle
- Kinesis
- Kinase
- Keystone Species
- Karyokinesis
- Kilobase
- Kelp
- Keratin
- Kin Selection
- Kidney
- Knockout
- Kleptoparasitism
- Karyoplasm
- Keratoplasty
- Kinetoplast
- Kinetic Energy
- K-selected Species
Math Words That Start With K:
- Knot Theory
- Kappa Curve
- Kelvin Function
- Kite
- Kernel
- Key (Cryptography)
- K-Means Clustering
- Klein Bottle
- Knapsack Problem
- K-Nearest Neighbors
- Kodaira Vanishing Theorem
- Kronecker Delta
- Kronecker Product
- Kullback-Leibler Divergence
- Kumon Method
- Kuratowski’s Theorem
- Kummer’s Conjecture
- Kummer Surface
- Kutta-Joukowski Theorem
- Ky Fan Norm
Physical Science Words With K:
- Kinetic Energy
- Kelvin Scale
- Kinematic Viscosity
- Krypton
- Kinetic Molecular Theory
- Kilo-
- Kilowatt
- Kinetic Theory of Gases
- Krypton Gas Laser
- Kilopascal
- Kelvin Wave
- Kip (unit)
- Kirchhoff’s Laws
- K-type Star
- Kink Band
- Knudsen Diffusion
- K-shell Electron
- Kinetics
- Kirlian Photography
- Klystron
Scientific Words With K:
- Karyotype
- Kinase
- Karyokinesis
- Kinematics
- Kinetic Energy
- Kappa
- Keck Telescope
- Kevlar
- Kepler Mission
- Kelvin
- Kilo-
- Kinesis
- Kleptoparasitism
- Knudsen Number
- Krypton
- Ketosis
- Kilojoule
- Koch’s Postulates
- Kinetic Molecular Theory
- Knockout Mouse
- K-selected
- Kaolin
- Kilohertz
- Kinescope
- Kelvin Probe Force Microscopy
Forensic Words with K:
- Keratin
- Karyotype Analysis
- Keystroke Logging
- Kinship Testing
- Kinesics
- Knife Marks
- Knockout Drops
- Known Sample
- Kastle-Meyer Test
- Kidnapping
- Kinetic Friction Analysis
- Kerf Tool Mark
- Karyotyping
- Key Evidence
- Kickback Fraud
- Kinesiology in Forensics
- Kill Zone
- Kinetic Energy in Ballistics
- Key Card Entry Data
- Kidnapping Forensics
Science Words with K and Their Meanings:
- Kinetics: Study of the rate of chemical reactions.
- Kilogram: Unit of mass, equal to 1000 grams.
- Kelvin: SI unit of thermodynamic temperature.
- Karyotype: Number and appearance of chromosomes in a cell.
- Kinetic Energy: Energy possessed by a body in motion.
- Krypton: Chemical element, noble gas, symbol Kr.
- Keystone Species: Species crucial to an ecosystem’s structure.
- Kilowatt: Unit of power, equal to 1000 watts.
- Kilohertz: Frequency unit, equal to 1000 hertz.
- Kerogen: Solid organic matter in sedimentary rocks.
- Knot: Unit of speed equal to one nautical mile per hour.
- Knuckle: Joint of a finger when the fist is clenched.
- Karyokinesis: Division of a cell’s nucleus during mitosis.
- Kelp: Large seaweeds belonging to the brown algae family.
- Kinase: Enzyme that catalyzes the transfer of phosphate groups.
- Kuiper Belt: Region of the Solar System beyond Neptune.
- Kilopascal: Unit of pressure, equal to 1000 pascals.
- Kinesiology: Study of human body movement.
- Kleptoparasitism: Stealing food or other resources from another organism.
- Ketosis: Metabolic state with elevated ketones in the body.
- Keratin: Protein forming hair, nails, and skin outer layer.
- Kilobyte: Unit of digital information, 1024 bytes.
- Kryptonite: Fictional material, weakens Superman in comic books.
- Kinematic Viscosity: Measure of a fluid’s resistance to flow.
- Ketone: Organic compound with a carbonyl group.
- Knob: Rounded lump or ball at the end of something.
- Karyoplasm: Substance of a cell nucleus.
- Koan: Paradoxical anecdote or riddle in Zen Buddhism.
- Kinesis: Movement or activity in response to a stimulus.
- Kiln: Oven for firing, drying, or hardening substances.
