Physical Science Vocabulary Quizs

Proton

• A negatively charged particle in the nucleus of an atom.

• A positively charged particle in the nucleus of an atom.

• A neutral particle found in the nucleus of an atom.

• A particle that orbits the nucleus of an atom.

Atomic Number

• The number of neutrons in the nucleus of an atom of an element.

• The number of protons in the nucleus of an atom of an element. The atomic number is the same for all atoms of an element.

• The total number of electrons in an atom of an element.

• The mass of an atom measured in atomic mass units.

Chemical Property

• A property of matter that describes a substance's ability to participate in chemical reactions.

• A characteristic that can be observed without changing the substance's chemical identity.

• A measure of how much matter is in an object.

• A property that describes the physical state of a substance.

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

Physical Property

• A characteristic of a substance that involves a chemical change.

• A characteristic of a substance that does not involve a chemical change, such as density, color, or hardness.

• A property that can only be observed under extreme conditions.

• A characteristic that defines the chemical reactivity of a substance.

Tags

NGSS.MS-PS3-4

Atom

• A small particle that is the basic building block of all matter.

• A type of molecule that forms chemical bonds.

• A large structure made up of cells.

• A fundamental force in physics.

Tags

NGSS.MS-PS1-1

Molecule

• A single atom that cannot be broken down further.

• Two or more atoms that are held together by covalent bonds and act as a unit.

• A mixture of different substances that retain their individual properties.

• A solid structure made up of ions held together by ionic bonds.

Tags

NGSS.MS-PS1-1

Law of Conservation of Mass

• Mass can be created or destroyed in chemical reactions.

• The total mass before a chemical reaction is the same as the total mass after the chemical reaction.

• Mass is only conserved in physical changes, not chemical changes.

• The law states that mass can change forms but is never conserved.

Tags

NGSS.MS-PS1-5

Group (Family)

• A horizontal row on the periodic table that consists of elements with varying properties.

• A vertical column on the periodic table that consists of elements with similar chemical properties and reactions with other elements.

• A collection of elements that are all metals and conduct electricity.

• A set of elements that have the same atomic number.

Electron

• A positively charged particle found in the nucleus of an atom.

• A negatively charged particle that occupies the space in an atom outside the nucleus.

• A neutral particle that is part of the atomic nucleus.

• A particle that has no charge and is found in the electron cloud.

Tags

NGSS.MS-PS1-1

Pure Substance

• A mixture of different elements and compounds.

• A sample of matter with variable properties.

• A sample of matter, either a single element or a single compound, that has definite chemical and physical properties.

• A substance that can be separated into simpler substances by physical means.

Tags

NGSS.MS-PS1-4