Science & Nature Vocabulary

Vocabulary words related to science & nature that appear on standardized tests including GRE, SAT, TOEFL, and IELTS.

296 words · Page 3 of 5

grasshopper TOEFL IELTS

A jumping insect with long hind legs that feeds on plants. It is often found in fields and grassy ar...

habitat GRE TOEFL

The natural environment in which an organism lives, or the typical place where something is found.

hairy GRE TOEFL IELTS

Covered with hair; also used informally to describe something risky or difficult.

hatchling TOEFL

A young bird, reptile, or fish that has recently emerged from an egg.

hedgehog GRE

A small nocturnal mammal with spines covering its back, known for rolling into a ball when threatene...

hepatitis GRE

Inflammation of the liver, often caused by a virus or excessive alcohol use.

heredity SAT TOEFL

The passing of genetic traits from ancestors to descendants through biological inheritance.

hybrid SAT GRE

A thing made by combining two different elements; an offspring of two different species or varieties...

hydrogen TOEFL IELTS

A chemical element with the symbol H and atomic number 1; the lightest and most abundant element in ...

hyena GRE

A nocturnal carnivorous mammal known for its scavenging habits and distinctive laughing call.

hypothesis SAT GRE TOEFL

A proposed explanation for a phenomenon, made as a starting point for further testing or investigati...

hypothesize TOEFL

To suggest a hypothesis as an explanation or basis for further investigation.

ichthyology SAT

The branch of zoology that deals with the study of fish.

imbalance TOEFL

A lack of balance or equality, especially in a physical, mental, or emotional state.

immunity GRE TOEFL

The ability of an organism to resist a particular infection or toxin.

immutable SAT GRE TOEFL

Unchanging over time or unable to be changed.

incontrovertible SAT TOEFL

Impossible to dispute or disprove; certain and unquestionable.

index IELTS

A list of items or topics arranged in alphabetical or systematic order for easy reference; also a me...

interdependent TOEFL

Describing entities that depend on each other for function or survival.

invertebrate GRE TOEFL

An animal lacking a backbone, such as an insect or mollusk.

invisible IELTS

Unable to be seen; imperceptible to the eye.

ion TOEFL

An atom or molecule with an electric charge due to the loss or gain of electrons.

irradiate SAT GRE TOEFL

To expose to radiation or to shine upon with intense light.

irreparable SAT GRE TOEFL

Impossible to fix, repair, or restore; causing permanent damage.

jellyfish TOEFL

A free-swimming marine animal with a transparent, jelly-like body and trailing tentacles.

jeopardy GRE TOEFL

A state of danger or risk.

jungle TOEFL IELTS

A dense, tropical forest with a thick growth of trees and plants, often characterized by high biodiv...

jurisprudence SAT GRE

The study or theory of law and legal principles.

larva GRE TOEFL

An immature form of an insect that undergoes metamorphosis before becoming an adult.

legume TOEFL

A plant or pod in the family Fabaceae, such as beans, peas, or lentils, often rich in protein.

linguistic TOEFL

Relating to language or the scientific study of language structure and development.

linguistics SAT GRE TOEFL

The scientific study of language and its structure, including phonetics, syntax, and semantics.

lobster GRE TOEFL IELTS

A large marine crustacean with a long body and claws, often used as food.

loon GRE

A type of aquatic bird with a distinctive call; also, a silly or eccentric person.

magnify GRE TOEFL

To make something appear larger, especially with a lens; to increase the importance or visibility of...

mainspring TOEFL

The main spring that powers a clock or watch; metaphorically, a chief source of motivation or energy...

mammal GRE TOEFL

A warm-blooded vertebrate animal that feeds its young with milk and usually has hair or fur.

marine SAT GRE TOEFL IELTS

Relating to the sea or ocean, or to navigation and shipping.

marsupial GRE

A mammal that carries and nurses its young in a pouch, such as kangaroos and opossums.

mechanics SAT TOEFL IELTS

The branch of physics that deals with the motion of objects and the forces acting on them; the worki...

membrane GRE TOEFL

A thin, soft layer of tissue that covers or lines organs and other structures in living organisms.

memorize TOEFL

To commit something to memory through repetition or study.

metabolic TOEFL

Relating to or involving the metabolism of an organism.

metabolism GRE TOEFL

The chemical processes that occur within a living organism to maintain life.

metamorphosis SAT GRE

A profound change in form from one stage to the next in the life cycle of an organism.

meteorology TOEFL

The scientific study of the atmosphere and weather phenomena.

method IELTS

A particular way of doing something, especially in a systematic way.

microbe GRE TOEFL

A microscopic organism, especially a bacterium causing disease or fermentation.

microorganism TOEFL

A microscopic organism, especially a bacterium, protozoan, or fungus, that is invisible to the naked...

microscope SAT TOEFL IELTS

An optical instrument used to view very small objects by magnifying them significantly.

microscopic SAT GRE TOEFL

So small as to be visible only under a microscope; extremely tiny.

microscopy GRE TOEFL

The technical field of using microscopes to view objects and areas not visible to the naked eye.

migratory SAT TOEFL

Used to describe species or individuals that migrate seasonally from one region to another.

mishap SAT GRE

An unfortunate minor accident or incident.

molecular TOEFL IELTS

Relating to or consisting of molecules.

molecule TOEFL

A group of atoms bonded together, representing the smallest fundamental unit of a chemical compound.

morphology SAT TOEFL

The study of the form and structure of words, or of organisms in biology.

multicellular TOEFL

Composed of many cells; used to describe organisms made of more than one cell.

multifaceted TOEFL

Having many different aspects or characteristics; complex and varied.

mutation SAT GRE

A change in the DNA sequence of an organism, often resulting in a new or altered trait. It is a sour...

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