Some science words that start with “I” describe substances, processes, or living things. A science words that start with i can include isotope, inertia, or insulator, which help students understand science better.
Learning a science words that start with i helps improve English vocabulary while understanding important science ideas and terms.
List of Science Words That Start With I with Pictures
- Ice
- Ice Core
- Iceberg
- Identify
- Illumination
- Illustrate
- Immune
- Impact
- Impact Crater
- Inclination
- Include
- Inertia
- Infiltration
- Infrared
- Inherited
- Inhibitor
- Initial
- Input
- Insect
- Insight
- Insolation
- Insoluble
- Inspection
- Inspiration
- Integration
- Interference
- Interglacial
- Interphase
- Interplanetary
- Interstellar
- Interstitial
- Interval
- Intrusion
- Invertebrate
- Ion
- Ion Thruster
- Ionic
- Ionization
- Io
- Iodine
- Isobar
- Isomer
- Isotope
- Isostasy
- Iridescence
- Irregular Galaxy
- Irradiance
- Irrigation
- Irreversible
- Isolation
- Iterate
- Inductant
- Indicator
- Indicator Species
- Inoculation
- Industrialization
- Infestation
- Investigate
- Ignore
- Iris
- Insulin

Physical Science Words Beginning With I
- Inertia
- Impulse
- Intensity
- Ionization
- Insulation
- Inclination
- Irradiance
- Isobar
- Isochoric
- Iridescence
Chemistry Words That Begin With I
- Ion
- Isotope
- Iodine
- Ionic
- Inhibitor
- Intermolecular
- Insoluble
- Isomer
- Indicator
- Inductant
Earth Science Words Starting With I
- Igneous
- Insolation
- Ice Core
- Iceberg
- Interglacial
- Intrusion
- Island
- Isostasy
- Irrigation
- Inversion
Environmental Science Words That Begin With I
- Invasive
- Industrialization
- Irrigation
- Incineration
- Impact
- Indicator Species
- Infiltration
- Integration
- Intervention
- Isolation
Life Science Words Starting With I
- Immune
- Incubation
- Inherited
- Insect
- Iris
- Infestation
- Invertebrate
- Interphase
- Insulin
- Inoculation
Space Science Words That Start With I
- Interstellar
- Infrared
- Ion Thruster
- Impact Crater
- Inclination
- Irregular Galaxy
- Io (moon)
- Interplanetary
- Interference
- Isotope Analysis
Grade-Specific Science Words Starting With I
5th Grade
- Inertia
- Ion
- Immune
- Ice
- Insect
- Inclination
- Irrigation
6th Grade
- Isotope
- Insolation
- Irrigation
- Intensity
- Incubation
- Indicator
- Industrialization
7th Grade
- Ionic
- Interstellar
- Inherited
- Inclination
- Impact
- Interphase
- Infestation
8th Grade
- Ionization
- Industrialization
- Interglacial
- Iris
- Incineration
- Invertebrate
- Irregular Galaxy
General Science Words That Begin With I
- Illustrate
- Identify
- Investigate
- Include
- Ignore
- Input
- Iterate
- Integrate
- Interface
- Induce
FAQs About Science Words Starting With I
Science words that start with I include Inertia, Ion, Isotope, Immune, and Infrared.
Physics and chemistry I words include Inertia, Impulse, Ionization, Ionic, and Isotope.
Focus on words like Inertia, Incubation, Immune, Igneous, and Interstellar for easier learning.
Easy I words include Ice, Insect, Iris, Ion, and Identify for young learners.
Visualizable words include Ice Core, Iris, Insect, Infrared, and Impact Crater.