4th Grade Vocabulary Unit 1 and Unit 2

Myview Savaas

habit

behavior you do often

severe

extreme condition

significant

important or notable

struggled

to go forward with difficulty.

specialized

having a specific focus or skill

determination

motivated to achieve a goal.

independence

freedom

confidence

feeling secure in your ability

contribute

add to something

exposed

reveal

poverty

being very poor

treacherous

dangerous or hazardous

identical

twin, same

radiation

the emission of energy as electromagnetic waves or subatomic particles.

DNA

endurance

and sustain prolonged physical or mental effort.

capacity

to maintain a sustained activity

descent

The process whereby species change over time through natural selection and adaptation, resulting in the evolution of new species.

bristle

a state of being easily broken or damaged

mimicry

is a survival adaptation where an organism imitates the appearance, behavior, or sound of another species to avoid predators or increase its chances of survival.

survive

to continue living or existing, especially in difficult conditions.

pursued

to follow or chase with intent to catch or achieve something.

classified

A method of organizing information into categories or groups based on shared characteristics.

sufficient

enough to meet the needs or requirements

defense

protecting oneself or something from attack or harm

acquire

to gain possession or control over something

rapids

fast-moving sections of a river

shimmering

A flickering or wavering light effect, shiny

desire

A strong feeling of wanting or wishing for something.

shallow

not deep.

deserted

Abandoned

species

A group of organisms that share the same characteristics

environment

The surroundings or conditions in which a person, animal, or plant lives or operates.

arranged

to be placed in a particular order or sequence.

habitat

the natural home or environment of an organism

internment

the state of being confined as a prisoner, often during wartime.

desolate

deserted, isolated, lonely

diverted

change direction

spectators

Individuals watching an event or performance.

remarkable

exceptional, wow

assembled

put together

brittle

easily broken or damaged

contour

the outline or shape of an object

system

a set of connected things or parts that work together.

prey

An animal that is hunted and eaten by another animal, typically a predator.

motivation

drive

excel

chromosomes

duplicate

comparison

The act of evaluating two or more items to identify similarities or differences between them.