Free Printable Middle School Chemistry Activities

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Matter and Phase Changes Word Search

Matter and phase changes word search for Grades 4–6. Find 13 hidden words including evaporation, condensation, sublimation, and melting point.

Matter and Phase Changes Word Search

Matter and phase changes word search for Grades 4–6. Find 13 hidden words including evaporation, condensation, freezing point, and sublimation in a large grid.

Organic Molecules Crossword Puzzle

Organic molecules crossword puzzle for Grades 7–9 science students. Vocabulary includes carbohydrates, enzymes, nucleotides, and types of fats.

Intense Hydration Hair Mask Gel: Formulation Checklist

Printable chemistry worksheet for Grades 6–12: students select carrier oils, binders, and essential oils to formulate an intense hydration hair mask gel and analyze cost.

Smoke Word Search

Smoke and combustion word search for Grades 4–6. Find 40 hidden words on gases, air quality, and chemical reactions, including oxygen, carbon dioxide, and combustion.

Periodic Table Elements Crossword Puzzle

Periodic table elements crossword puzzle for Grades 4–6. Clues cover neon, cobalt, silver, helium, hydrogen, and other common elements from everyday applications.

Nylon Annotation Guide

Printable 8th grade science worksheet: students annotate sources about nylon to identify benefits, environmental impacts, and evidence of chemical reactions.

Nylon: History and Environmental Impact Annotation Guide

Printable 8th grade science worksheet using annotation and source analysis to examine the history, chemistry, and environmental consequences of nylon production.

Metals Word Search

Metals word search for Grades 4–6. Find 15 hidden element names including copper, bronze, titanium, and platinum in a circle-shaped grid.

Galaxy Milk Lab Worksheet

Printable 6th grade science lab worksheet for a hands-on milk and soap experiment exploring surface tension and molecular chemistry.

Atomic Structure and Isotopes

Printable Grades 6–7 chemistry worksheet on atomic structure covering protons, neutrons, electrons, atomic number, mass number, and isotopes.

Chemical Bond Crossword Puzzle

Chemical bond crossword puzzle for Grades 7–9 chemistry students. Practice ionic bonds, covalent bonds, valence electrons, and related concepts.

Chemical Bonds Crossword Puzzle

Chemical bonds crossword puzzle for Grades 8–10. Practice ionic, covalent, and metallic bonds with vocabulary like valence electrons, octet, and ions.

Chemistry in Spanish Crossword Puzzle

Spanish chemistry crossword puzzle for middle school students. Covers matter, acids and bases, atoms, molecules, and physical and chemical changes.

Matter Word Search

Matter and chemistry word search for Grades 6–8. Find 33 hidden words including atom, molecule, states of matter, and chemical reactions in a smiley-shaped grid.

Super Slurpers: Science Experiment on Polymers

Printable 7th grade science worksheet on polymers and superabsorbent materials: students answer 26 questions about sodium polyacrylate, osmosis, and real-world applications.