Ignite your interest in science with incredible words starting with the letter I! From the icy intrigue of ‘icebergs’ to the innovative ideas in ‘immunology,’ I bring an array of insightful terms.
Our guide will introduce you to these words, infusing simple explanations that invite everyone into the inspiring world of science.
Science Words That Start With I
Here is the list of common science words with I;
- Inertia
- Ion
- Infrared
- Isotope
- Insulin
- Immunity
- Interference
- Innovation
- Infection
- Inflammation
- Indicator
- Invertebrate
- Inference
- Integration
- Isolation
- Immunology
- Integumentary
- Induction
- Ionic bond
- Inversion
- Intensity
- Ionsphere
- In situ
- Intracellular
- Inhibitor
- Insolation
- Inductive reasoning
- Isomer
- Inheritance
- Immunization
- In vitro
- Isomerism
- Incubation
- Intramolecular
- In vitro fertilization
- Immune response
- Interferometry
- Incubation period
- Induced mutation
- Insulator
- Isomerase
- Intertidal zone
- Inscription
- Inertia moment
- Integumentary system
- Immunoglobulin
- Ionization energy
- Interface
- Inorganic chemistry
- Isomorphism
- Incandescent
- Immunodeficiency
- Intercellular communication
- Isotope analysis
- Insecticide
- Ingestion
- Information theory
- Intraocular lens
- Isomeric compound
- Interstitial fluid
- In vivo
- Immunohistochemistry
- Internal combustion engine
- Intracellular signaling
- Iodine
- Introns
- Isolated system
- Indirect measurement
- Immune system
- Intensive property
- Ion exchange
- Insulin resistance
- Influenza
- Interferon
- Isotonic solution
- Isostasy
- Ionic compound
- Immunotherapy
- Ion channel
- Iridescence
- Isotropic
- Implant
- Inhibitory neuron
- Indel
- Ionotropic receptor
- Immune cell
- Interphase
- Impulse
- Iron
- Isotopic fractionation
- Invasive species
- Ionosphere layer
- Invasive surgery
- Immunosuppression
- Interference pattern
- Intron-exon
- Infertility
- Interferometer
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 I (By Grade)
4th Grade Science Words With I:
- Insect
- Iguana
- Igneous rock
- Inertia
- Incisor
- Incline
- Infection
- Invertebrate
- Ice Age
- Iceberg
- Incubation
- Indicator
- Infiltration
- Influence
- Ingredients
- Iron
- Island
- Irrigation
- Impact
- Intestine
5th Grade Science Words With I:
- Insulator
- Ion
- Iris
- Iodine
- Inclined Plane
- Inference
- Influenza
- Intensity
- Internal
- Invention
- Invasive species
- Isobar
- Isotope
- Interaction
- Intercellular
- Interdependence
- Interval
- Invertebrate
- Investigation
- Iridescence
6th Grade Science Words With I:
- Immunity
- Incandescent
- Inclination
- Incomplete dominance
- Independent variable
- Induction
- Industrialization
- Inertia
- Infiltration
- Infinite
- Infrared
- Inherited Traits
- Innovation
- Input
- Inquiry
- Insecticide
- Instinct
- Insulation
- Integrated circuit
- Intertidal zone
7th Grade Science Words With I:
- Immunization
- Impulse
- Incisor
- Indicator species
- Indigenous
- Indigo
- Indirect observation
- Inducer
- Inert
- Inertia
- Infinitesimal
- Inflammation
- Informatics
- Ingestion
- Inherited
- Inhibitor
- Inoculate
- Insoluble
- Instantaneous speed
- Integumentary system
8th Grade Science Words With I:
- Immunology
- Impactor
- Impermeable
- Inclined plane
- Incompressible
- Index fossil
- Indicator
- Inert gas
- Inference
- Inflatable
- Infographic
- Inorganic
- Input force
- Inscription
- Insect physiology
- Instar
- Integral
- Intercostal
- Interface
- Interstellar
Science Words Starting With I (By Subject)
Physics Words That Start With I:
- Impulse
- Inductance
- Inertia
- Interference
- Ionization
- Irradiance
- Isotope
- Insulator
- Inductor
- Intensity
- Inverse square law
- Image
- Impact force
- Impedance
- Inclined plane
- Induction
- Inertial frame
- Inertial mass
- Inflection point
- Interferometer
Chemistry Words That Start With I:
- Ion
- Ionic bond
- Isomer
- Isotope
- Inert
- Indicator
- Inorganic chemistry
- Immiscible
- Iodometry
- Ideal gas
- Inhibitor
- Inorganic compound
- Interstitial
- Ion exchange
- Ionization energy
- Iridium
- Isotonic
- Isobaric process
- Immobilized enzyme
- Isotactic polymer
Biology Words That Start With I:
- Insecticide
- Invertebrate
- Innate immunity
- Inoculation
- In vitro
- In vivo
- Intracellular
- Iodine test
- Ion channel
- Iris
- Isogamy
- Interphase
- Introns
- Ingestion
- Inheritance
- Insectivorous
- Instinct
- Interspecies
- Intestine
- Immunoglobulin
Math Words That Start With I:
- Integer
- Integral
- Interpolate
- Inequality
- Imaginary number
- Intercept
- Inverse function
- Index notation
- Isosceles triangle
- Irrational number
- Infimum
- Invariant
- Identity matrix
- Indeterminate form
- Interval notation
- Isometry
- Iteration
- Icosahedron
- Idempotent matrix
- Inverse matrix
Physical Science Words With I:
- Impetus
- Inertia
- Insulator
- Ion
- Ionization
- Isotope
- Illuminance
- Immiscibility
- Impedance
- Inclined plane
- Incompressibility
- Inductance
- Infrared radiation
- Intermolecular forces
- Ionic compound
- Irradiation
- Isobar
- Isotonic solution
- Isomorphism
- Ideal gas law
- Immiscible liquids
- Impulse momentum theorem
- Incandescence
- Index of refraction
- Intensive property
Scientific Words With I:
- Immunology
- Incubation
- Indicator
- Inertia
- Infiltration
- Infusion
- Ingestion
- Inoculation
- Insecticide
- Insulin
- Interference
- Intermolecular
- Isolation
- Isomerism
- Isothermal
- Isotonic
- Isotope
- Iterative process
- In vitro
- In vivo
- Inclusion
- Index fossil
- Inductive reasoning
- Inert gas
- Intercellular
Forensic Words with I:
- Incriminate
- Indictment
- Infraction
- Inquest
- Interrogate
- Identification
- Impression evidence
- Infrared spectroscopy
- Ink analysis
- Involuntary manslaughter
- Investigator
- Indicia
- Informant
- Infiltration
- Infrared photography
- Impound
- Instrumental analysis
- Intoxication
- Implicate
- Immunoassay
- Indeterminate sentence
- Intentional injury
- Internal ballistics
- Inconsistency
- Illicit substances
Science Words with I and Their Meanings:
- Inertia: Resistance to change in motion.
- Ion: Atom or molecule with a net electric charge.
- Igneous: Relating to rock formed by cooling magma.
- Isotope: Variants of elements with different neutron numbers.
- Insulin: Hormone regulating glucose levels in blood.
- Impulse: Change in momentum of a body.
- Infrared: Electromagnetic radiation with longer wavelengths than visible light.
- Incubation: Period of development of disease or eggs.
- Intertia: Resistance to motion or change.
- Inoculation: Introduction of a vaccine to prevent disease.
- Invertebrate: Animal lacking a backbone.
- Isobar: Line on a map connecting points of equal atmospheric pressure.
- Ionosphere: Layer of Earth’s atmosphere ionized by solar radiation.
- Irradiation: Exposure to radiation.
- Ichthyology: Study of fish.
- Immunology: Study of the immune system.
- Infiltration: Downward movement of water through soil.
- Isomer: Compound with the same formula but a different arrangement of atoms.
- Interphase: Period of the cell cycle between divisions.
- Induction: Initiation or causing of a process or action.
- Infrasound: Sound waves with frequencies below the lower limit of human audibility.
- Insecticide: Substance used to kill insects.
- Impedance: Resistance to the flow of electrical current.
- Inhalation: Act of breathing in.
- Iridescence: Display of lustrous, rainbow-like colors.
- Integument: Covering or skin of an organism.
- Isostasy: Equilibrium between Earth’s crust and mantle.
- Interstellar: Between the stars.
- Igneous: Rock formed by solidification of molten magma.
- Isolation: Process of separating from others.
