What is a science word that starts with the letter I?

needed for a homework

GOMEZ LOPEZ2007-01-02T14:33:12Z

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Igneous rocks... formed by great heat.
Impetigo.... disease of the skin.
invertebrate..... animal without an internal skeletal support (backbone).

Anonymous2007-01-02T14:38:12Z

Isotope, Invertebrate, Ilium, Irrigate, Insoluble

thomasrobinsonantonio2007-01-02T14:35:03Z

Infra-red. Inertia. Insoluable. Inflammable.

Adriana2007-01-02T14:34:55Z

Isotope
Ion
Intestine

What type of science? There are many different words in each field.

Kristine P2007-01-02T14:35:39Z

Igneous rock

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