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Identify atoms
Free printable Grade 7 science worksheet for "Identify atoms" — practice atoms and molecules. No-prep, print or assign online.
This middle-school Physical Science worksheet asks students in Grades 6–8 to identify atoms as the basic building blocks of matter and to describe key atomic properties, including the roles of protons, neutrons, and electrons. Teachers can use it to open an atoms-and-molecules unit, as a reading-guide companion, or as a formative check after direct instruction. It aligns with Physical Science standards that require students to model and explain the structure of matter.
Learning objectives
- Identify atoms as the fundamental units of matter and name their subatomic particles
- Describe the roles of protons, neutrons, and electrons in determining atomic properties
- Explain how the number of protons defines an element's identity
Answer Key

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- Use the included answer key to mark it in seconds.
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