The smallest unit of matter that cannot be broken down by ordinary chemical reactions.

• Atom

• Matter

• Particle

• Cell

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Chemical and physical properties that define attributes of a pure substance and are independent of the sample amount. Characteristic properties can be used to identify pure substances.

• Chemical Property

• Physical Property

• Characteristic Property

• Solubility

Tags

NGSS.MS-PS1-2

A change that occurs when one or more substances are changed into entirely new substances with different properties.

• Flammability

• Physical Change

• Characteristic Property

• Chemical Change

Tags

NGSS.MS-PS1-5

A descriptor of a substance that requires a chemical reaction to observe.

• Chemical Property

• Physical Property

• Characteristic Property

• Luster

Tags

NGSS.MS-PS1-2

A solid that contains atoms arranged in an organized way.

• Particle

• Crystal

• Soluble

• Solvent

Tags

NGSS.MS-PS1-1

The process during which a homogeneous mixture forms. The particles of the dissolved substance (solute) are spread evenly throughout the dissolving substance (solvent), so that they are no longer visible.

• Solute

• Solvent

• Dissolve

• Reactivity

A chemical property describing whether or not a substance can combust.

• Flammability

• Reactivity

• Solubility

• Magnetism

Substances that make up the universe. All matter has mass and volume.

• Matter

• Atoms

• Particles

• Crystals

Tags

NGSS.MS-PS1-1

A physical property that describes the ability of a material to be shaped, flattened, or otherwise deformed without breaking.

• Flammability

• Malleability

• Reactivity

• Luster

Two or more atoms connected by a chemical bond.

• Atom

• Molecule

• Particle

• Crystal

Tags

NGSS.MS-PS1-1