Nature of Matter

Front

What is a pure substance that cannot be broken down into simpler substances by physical or chemical means?

Back

Element

Front

What is the smallest particle of an element that retains the chemical identity of that element?

Back

Atom

Front

What is matter that contains a combination of different elements and/or compounds and can be separated by physical means?

Back

Mixture

Front

What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, such as salt water.

Front

Matter is a term used to describe anything that has _________ and takes up __________.

Back

Mass; Space

Front

What is a compound?

Back

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

Tags

NGSS.MS-PS1-1

Front

What is a molecule?

Back

The smallest unit of a chemical compound that retains its chemical properties, made up of two or more atoms.

Tags

NGSS.MS-PS1-1

Front

What is the difference between a pure substance and a mixture?

Back

A pure substance has a uniform and definite composition, while a mixture contains two or more substances that can be separated.

Front

What is density?

Back

The mass of an object divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the law of conservation of mass?

Back

In a chemical reaction, mass is neither created nor destroyed; it is conserved.

Tags

NGSS.MS-PS1-5