|Address||P.O. Box 219 Batavia, IL 60510|
Item #: AP7446
Materials Included in Kit:
Mole concept puzzle sheets
MS-PS1-5. Develop and use a model to describe how the total number of atoms does not change in a chemical reaction and thus mass is conserved.
HS-PS1-7. Use mathematical representations to support the claim that atoms, and therefore mass, are conserved during a chemical reaction.