8th Science Vocabulary

Front

Covalent Bond

Back

A chemical bond formed between two atoms through the sharing of one or more pairs of electrons.

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Diatomic

Back

Elements that are molecules composed of two atoms.

Front

Brittle

Back

A property of a material that breaks when stress is applied, but has a small tendency to bend before breaking.

Front

Molecular Structure

Back

The arrangement of atoms and their connectivity within a molecule.

Front

Exothermic Reaction

Back

A chemical reaction that releases energy, usually in the form of heat.

Front

Endothermic Reaction

Back

A chemical reaction that absorbs energy from its surroundings.

Front

Atom

Back

The basic unit of a chemical element, consisting of a nucleus surrounded by electrons.

Front

Compound

Back

A substance formed when two or more different elements are chemically bonded together.

Front

Mixture

Back

A combination of two or more substances that are not chemically bonded.

Front

Malleable

Back

A property of a material that allows it to be deformed under stress without breaking.