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Structure of Molecules, Atoms, & Elements Middle School Science Unit

molecules and atoms

Need a little help teaching your students about molecules, atoms, and the Periodic Table of Elements?

This unit will save you lots of time and keep your students engaged!

Molecules and Atoms

Your class will learn about the structure of molecules and atoms and will make models!

molecules and atoms

This unit is aligned with standards NGSS MS-PS1-1 and Utah SEEd 6.2.1 and 8.1.1.

NGSS MS-PS1-1: Develop models to describe the atomic composition of simple molecules and extended structures.

Utah SEEd 6.2.1: Develop models to show that molecules are made of different kinds, proportions, and quantities of atoms. Emphasize understanding that there are differences between atoms and molecules and that certain combinations of atoms form specific molecules. Examples of simple molecules could include water (H2O), atmospheric oxygen (O2), and carbon dioxide (CO2).

Utah SEEd 8.1.1: Develop a model to describe the scale and proportion of atoms and molecules. Emphasize developing atomic models of elements and their numbers of protons, neutrons, and electrons, as well as models of simple molecules. Topics like valence electrons, bond energy, ionic complexes, ions, and isotopes will be introduced at the high school level.

molecules and atoms

LOVE this resource! We’re using it to reinforce the Chemistry chapter in “Everything You Need to Know About Science” and because my kids have enjoyed these resources so much, they want to do further study in Chemistry!

Amanda B.

molecules and atoms

This resource on Molecules and Atoms includes multiple activities:


      • PowerPoint slideshow on molecules and the Periodic Table

      • Molecule Worksheets

      • Interactive Notebook Flaps

      • Hands-on model-creating activity using easy-to-find materials such as toothpicks and marshmallows

      • Quiz

      • Answer Keys for Everything!

    molecules and atoms

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    molecules and atoms

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