Atomic Models & Modeling Activity

Grade Levels
7th - 12th, Homeschool
Formats Included
  • PDF
34 pages
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Model atomic bonding, chemical formulas, chemical reactions and equations with these reusable atomic models! Eleven different elements (H, C, Cl, I, Fe, Mg, N, O, P, Na, S, and arrows for equations) are included in color and black and white. Atoms are colored according to the CPK coloring convention and labeled with chemical symbols for easy recognition of elements. Atoms are also sized according to atomic radii to increase awareness of periodic table trends. In addition, a chemical equation balancing activity is included so students can model the law of conservation of mass as they learn to balance chemical equations! Students will practice balancing 10 chemical equations while they model the various chemicals.

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Next Generation Standard Met:
MS-PS1-5 Matter and its Interactions
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.

Disciplinary Core Idea
PS1.B: Chemical Reactions
Substances react chemically in characteristic ways. In a chemical process, the atoms that make up the original substances are regrouped into different molecules, and these new substances have different properties from those of the reactants.
The total number of each type of atom is conserved, and thus the mass does not change.

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Total Pages
34 pages
Answer Key
Teaching Duration
2 days
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