Classweekly

7th Grade Atoms and Molecules Worksheets

Ages 12-13 · Free previews · Print-ready PDFs

Written by Adi Ackerman, Head Teacher

These 7th grade atoms and molecules worksheets build atomic structure step by step. Students label Bohr models of lithium, fluorine, magnesium and sulfur, draw electron shells, fill atomic data tables and tell elements from compounds by formula. Other sheets follow models of the atom through history and compare atoms with a hair's width. All 11 sheets have answer keys.

More matter worksheets

Explore all of our 7th grade matter worksheets, covering atoms and molecules, the periodic table, physical and chemical changes, states and properties of matter, and more.

Frequently Asked Questions

An element has one kind of atom and a compound has two or more kinds joined together. On the formula sheet, students sort formulas such as O3 and CO and count the total atoms in each.

What is ClassWeekly?

ClassWeekly offers free worksheets and printable learning resources for kids, from preschool up. All worksheets are aligned to Common Core, NGSS, and C3 Framework standards and designed by educators. Become a member to access the full library and download unlimited PDFs.