Chemistry Vocabulary

Smallest part of a substance that has all the properties of that substance - more than one element, like hydrogen and oxygen make water

• Atom

• Molecule

• Product

• Compound

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Change that does not produce new substances - melting an ice cube or ripping paper. You can get the ice back and the paper is still paper.

• Physical Change

• Reactant

• Chemical Change

• Product

Change that produces new substances - burning wood to make ashes or mixing mentos and coke. You can't get the wood or the mentos back.

• Product

• Physical Change

• Chemical Change

• Reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Atoms (Matter and/or Mass) can neither be created nor destroyed but can only be rearranged. 

• Chemical bond

• The Law of Conservation of Mass (Matter/Atoms)

• Molecule

• Chemical Reaction

Tags

NGSS.MS-PS1-5

Force of attraction that holds atoms together

• Chemical Reaction

• Molecule

• Chemical Bond

• The Law of Conservation of Mass (Matter/Atoms)

Substance that is changed in a chemical reaction. It's on the left side of a chemical equation! 

• Product

• Reactant

• Molecule

• Chemical Reaction

Substance that is formed in a chemical reaction   It's on the right side of a chemical equation! 

• Molecule

• Reactant

• Product

• Chemical Reaction

Process in which new substances with new chemical and physical properties are formed.

• Chemical Change

• Chemical Reaction

• Physical Change

• Chemical Bond

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How many protons are in the element Carbon?

• 18.011

• 12.011

• 12

• 6

Tags

NGSS.MS-PS1-1

How many H (Hydrogen) atoms are in this chemical formula?

• 24

• 6

• 12

• 3

Tags

NGSS.MS-PS1-1