unit 1 vocab quiz

What is the smallest unit of matter that keeps the properties of an element?

• Atom

• Molecule

• Compound

• Element

What is the mass of an atom mostly derived from?

• Protons and neutrons

• Electrons

• Chemical bonds

• Chemical reactions

What identifies the element in an atom?

• Atomic Number

• Atomic Mass

• Chemical Symbol

• Density

What is the force that holds atoms together in compounds or molecules?

• Chemical Bond

• Physical Change

• Thermal Energy

• Oxidation

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-3

What is a change that forms a new substance, like burning or rusting?

• Chemical Change

• Physical Change

• Melting

• Ductility

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What shows the type and number of atoms in a compound, like H₂O?

• Chemical Formula

• Chemical Symbol

• Subscript

• Reactant

Tags

NGSS.MS-PS1-1

What describes how a substance reacts, such as flammability or reactivity?

• Chemical Property

• Physical Property

• Density

• Volume

What is a process where substances change into new substances?

• Chemical Reaction

• Physical Change

• Melting

• Oxidation

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is one or two letters representing an element, like Na for sodium?

• Chemical Symbol

• Chemical Formula

• Atomic Number

• Atomic Mass

What is a substance made of two or more elements chemically combined?

• Compound

• Mixture

• Element

• Molecule