PS Chapter 3 vocabulary

Substances present at the beginning of a chemical reaction. (all lower case)

Substances present at the end of a chemical reaction. (all lower case)

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Substance added to speed up a chemical reaction

It is when atoms are rearranged and a new substance is created.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Large number before a chemical formula that indicates how many molecules are involved in the chemical reaction.

States that atoms are not created or destroyed in a chemical reaction. (all lower case words)

Tags

NGSS.MS-PS1-5

Reaction in which energy is given off in the form of heat or light.

Reaction where energy is absorbed.

Tags

NGSS.HS-PS1-4

Same element different numbers of neutrons

Sub-atomic particle with a negative charge outside the nucleus.