7th Grade Science Worksheets
Ages 12-13 · 11 topics · 169 worksheets
7th grade science worksheets (169) for ages 12-13: atoms, the periodic table, cells, heredity, energy and Earth systems, most with answer keys.
Popular 7th grade science worksheets
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About these worksheets
7th grade science worksheets on ClassWeekly are 169 printable sheets for ages 12-13 across 11 topics, 168 with an answer key. They cover atoms and the periodic table, cells and heredity, energy, forces, waves, Earth systems, ecosystems, the scientific method and engineering design.
7th grade science asks students to use models and data to explain what they see. Every sheet can be answered from the page itself: the reading, table, diagram or graph a student needs is printed on it.
This page collects all 169 science worksheets for 7th grade. Matter is the largest topic with 44 sheets on atoms and molecules, the periodic table, states and properties of matter, density, and physical and chemical changes. Living Things has 36 on cells, heredity, natural selection, reproduction, photosynthesis and body systems. Energy has 19 on heat transfer, kinetic and potential energy, and electricity and magnetism.
Scientific Method has 16 sheets on variables, lab safety and measurement. Earth Science has 11, Ecosystems 10, Earth Systems 10, Forces and Motion 8, Earth and Space 7, and Waves and Light and Engineering and Design 4 each.
168 of the 169 sheets have an answer key; the periodic table reference page does not need one. 96 sheets carry a middle school NGSS performance expectation. The others practice a skill or fact that no single expectation names, so they carry none.
Last reviewed: November 2026