Chemical vs. Physical Change

Water changing phase from a liquid to vapor is referred to as a ​ (a)  

• physical change
• chemical change
• color change
• exothermic reaction
• molecule
• chemical bond
• irreversible
• reversible
• electron
• proton

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

​ (a)   are forces which hold atoms together in molecules.

• chemical bonds
• chemical change
• color change
• exothermic reaction
• molecule
• irreversible
• reversible
• electron
• proton
• physical change

Tags

NGSS.MS-PS1-1

Two or more atoms covalently bonded together make up a ​ (a)   .

• molecule
• chemical change
• color change
• exothermic reaction
• irreversible
• reversible
• electron
• proton
• physical change
• chemical bond

Tags

NGSS.MS-PS1-1

A ​ ​ (a)   is when atoms are reorganized and substances are changed into other substances.

• chemical change
• color change
• exothermic reaction
• irreversible
• reversible
• electron
• proton
• physical change
• chemical bond
• molecule

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are some things that you may observe or measure that indicate a chemical reaction between 2 or more substances?

Evaluate responses using AI:

OFF

Tags

NGSS.MS-PS1-2

An (a)   reaction involves the excess release of heat energy from a chemical reaction to the surroundings.

• exothermic
• endothermic
• irreversible
• reversible
• electron
• proton
• physical change
• chemical bond
• molecule
• chemical change

Tags

NGSS.HS-PS1-4

An (a)   reaction occurs when heat energy from a chemical reaction is absorbed into the system.

• endothermic
• irreversible
• reversible
• electron
• proton
• physical change
• chemical bond
• molecule
• chemical change
• exothermic

Tags

NGSS.MS-PS3-4

Chemical reactions are ​ (a)   due to the fact that reactants in chemical reactions cannot reform.

• irreversible
• reversible
• electron
• proton
• physical change
• chemical bond
• molecule
• chemical change
• exothermic
• color change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A rubber band stretches when pull on it.

• physical change

• chemical change

A log of wood is burned in a fireplace.

• physical change

• chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5