All the different populations that live together in an area

The struggle between organisms to survive in a habitat with limited resources

A substance made up of atoms of two or more different elements joined by chemical bonds

A community of organisms and their abiotic environment

Electromagnetic spectrum

All of the frequencies or wavelengths of electromagnetic radiation

A subatomic particle that has a negative charge

Area around the nucleus of an atom where the atom's electrons are most likely to be found

A galaxy shaped like a flattened ball, containing only old stars.

The moon is a quarter of the way around the Earth. You can see the right half of the moon.

The number of complete wavelengths that pass a point in a given time

Moon phase when the entire side facing Earth is illuminated.

A collection of stars, dust, and gas bound together by gravity

A vertical column of elements in the periodic table

Hertzsprung‐Russell diagram

Relation between stars' luminosity (that is, how bright they are) and their temperature (how hot they are).

The actual brightness of a star

The galaxy containing the solar system

Two or more atoms held together by bonds

An object's change in position relative to a reference point.

A less than average tide occurring at the first and third quarters of the moon

A cloud in outer space consisting of gas or dust that forms after a star explodes.

The sum of all forces acting on an object

A subatomic particle that has no charge and that is found in the nucleus of an atom

A moon that is completely dark because its unlit side is facing Earth

Newton's first Law of motion

The scientific law that states that an object at rest will stay at rest and an object in motion will stay in motion with a constant speed and direction unless acted on by a force

Newton's second Law of Motion

The acceleration of an object is dependent upon the net force acting upon the object and the mass of the object.

Newton's third Law of Motion

For every action there is an opposite and/or equal reaction

A relationship in which one organism lives on or in a host and harms it.

A horizontal row of elements in the periodic table

A table that shows the elements, their atomic number, symbol, and average atomic mass; elements with similar chemical properties are grouped together.

Group of individuals of the same species that live in the same area

An ecological succession that begins in an area where no biotic community previously existed

A subatomic particle that has a positive charge and that is found in the nucleus of an atom

Type of succession that occurs in an area that was only partially destroyed by disturbances

The distance an object travels per unit of time

A galaxy whose arms curve outward in a pinwheel pattern

A tide just after a new or full moon, when there is the greatest difference between high and low water.

A number in a chemical formula that tells the number of atoms in a molecule or the ratio of elements in a compound

The phase of the moon in which the left half of the moon is lit and the right half is dark

The distance between two corresponding parts of a wave

8th Grade Science Final Vocabulary Flashcards

Student preview

50 questions

Show all answers

1.

FLASHCARD QUESTION

Front

Acceleration

Back

The rate at which velocity changes

2.

FLASHCARD QUESTION

Front

Adaptation

Back

A trait that helps an organism survive and reproduce

3.

FLASHCARD QUESTION

Front

Atom

Back

Basic unit of matter

4.

FLASHCARD QUESTION

Front

Biotic

Back

Describes living factors in the environment.

5.

FLASHCARD QUESTION

Front

Cell

Back

Basic unit of life

6.

FLASHCARD QUESTION

Front

Chemical formula

Back

A combination of chemical symbols and numbers to represent a substance

7.

FLASHCARD QUESTION

Front

Coefficient

Back

A number in front of a chemical formula in an equation that indicates how many molecules or atoms of each reactant and product are involved in a reaction.

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