Chemistry Worksheets

Valentine's Day Science Activities | STEM, Project, Readings | 6th, 7th, 8th

Created by
TWFScience

Make February meaningful (and still academically rigorous) with hands-on, low-prep Valentine’s Day science. This bundle brings together activities, STEM investigations, readings, and a project that connects core science concepts to familiar Valentine’s themes—chocolate, candy, hearts, bonding, and c

6th - 10th Chemistry, Engineering, Physical Science

Valentine's Day Science Activities | STEM, Project, Readings | High School

Created by
TWFScience

Make February meaningful (and academically rigorous) with hands‑on, low‑prep Valentine’s Day science for grades 9‑12. This bundle combines lab investigations, in‑depth readings, themed activities, and a project that ties core high‑school science concepts—density, gas production, bond energy, phase c

8th - 11th Chemistry, Engineering, Physical Science

The Science of Snow, Snowflakes, & Frost Reading | How it Forms | 6th, 7th, 8th

Created by
TWFScience

This grade 6–8 reading introduces students to the science of snow, snowflakes, and frost, explaining how phase changes, temperature, and heat transfer shape winter weather. Students learn how snow forms in clouds, why snowflakes have unique six-sided shapes, and how frost develops on cold surfaces a

6th - 8th Chemistry, General Science, Physical Science

Also included in: Winter Weather & Snow Bundle - Lessons, Project, Activities | 6th 7th 8th Grade

The Acid Rain Mystery – Chemistry Detective Activity | Precipitation, pH scale

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on air pollution and chemical reactions in the atmosphere. In this case file activity, students analyze rainwater pH data, examine surface damage on stone buildings, evaluate plant health pattern

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Household Cleaning Products Reaction Mystery – Chemistry Detective Activity

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on how household cleaning products work at the chemistry level. In this case file activity, students analyze cleaning test results, compare grease and stain removal data, evaluate disinfectant cl

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Conductivity Case Mystery – Chemistry Detective Activity | Current, Circuit

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on why some liquids conduct electricity while others do not. In this case file activity, students analyze conductivity test results, compare salt water, sugar water, vinegar, baking soda, tap wat

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Energy Release Mystery – Chemistry Detective Activity | Exothermic, Reaction

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on how and why some chemical reactions release energy rapidly. In this case file activity, students analyze temperature changes, observe gas production, evaluate reaction speed data, examine syst

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Phase Change Puzzle Mystery | Detective Activity | States of Matter

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on why matter changes state without changing its identity. In this physical change vs chemical change case file activity, students analyze melting and freezing, evaporation, and condensation obse

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Missing Mass Mystery - Chemistry Detective Activity | Conservation of Mass

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on the Law of Conservation of Mass. In this case file activity, students analyze mass measurements, examine gas formation data, compare open and closed systems, evaluate dissolving observations,

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Ozone Layer Mystery - Chemistry Detective Activity | Ultraviolet Radiation

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on what protects Earth from harmful radiation. In this case file activity, students analyze UV radiation data, examine ozone concentration trends, evaluate atmospheric chemistry evidence, track h

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Plastic Breakdown Mystery - Chemistry Detective Activity | Microplastics

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on why plastic lasts so long in the environment. In this case file activity, students analyze environmental observations, examine sunlight exposure data, compare decomposition patterns, evaluate

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Solubility Surprise Mystery - Chemistry Detective Activity | Solute, Solvent

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on why some substances dissolve while others do not. In this case file activity, students analyze dissolving observations, examine temperature effects, compare different substances in water, eval

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Spoiled Food Mystery - Chemistry Detective Activity | Microorganisms Microbe

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on why food changes over time. In this case file activity, students analyze food spoilage observations, examine environmental conditions, compare storage methods, evaluate microbial activity evid

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Air Quality Alarm Mystery - Chemistry Detective Activity | Pollution, Smog

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on air pollution and chemical contaminants in the atmosphere. In this case file activity, students analyze air quality data, examine pollutant sources, interpret particle measurements, evaluate c

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Density Disaster Mystery - Chemistry Detective Activity | Buoyancy, Mass

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on density and buoyancy. In this case file activity, students analyze mass and volume data, examine floating and sinking observations, compare different materials, evaluate liquid density changes

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Magnetic Mix-Up Mystery - Chemistry Detective Activity | Magnetism

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on magnetism and material properties. In this case file activity, students analyze magnetic test results, examine material composition, compare different metals and nonmetals, evaluate patterns i

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Rising Dough Mystery - Chemistry Detective Activity | Fermentation, Baking

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on fermentation, gas production, and baking science. In this case file activity, students analyze dough observations, examine yeast activity, interpret gas formation evidence, evaluate temperatur

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Rusting Metal Mystery - Chemistry Detective Activity | Corrosion, Oxidation

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on chemical change and corrosion. In this case file activity, students analyze rusting observations, examine environmental conditions, interpret moisture and oxygen effects, evaluate corrosion pa

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

Rare Earth Elements and Technology Reading | Grade 8 & Up | Mining, Resources

Created by
TWFScience

Rare Earth Elements and Technology: Uses, Supply Risks, and Sustainable Solutions Reading Comprehension Passage and QuestionsThis reading explores the critical role rare earth elements play in modern technology and the growing challenges tied to their supply and environmental impact. It is a high-in

8th - 12th Chemistry, Earth Sciences, General Science

The Case of the Corroded Bike Rack - Physical and Chemical Change Investigation

Created by
TWFScience

Engage your students with this NO PREP, real-world science WHODUNNIT investigation focused on chemical change, rusting, and corrosion. In this structured investigation, students examine real-world conditions, analyze data tables, evaluate the effects of moisture and salt, eliminate possible causes,

7th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-5

The Case of the Foggy Classroom Windows - Physical & Chemical Change Activity

Created by
TWFScience

Engage your students with this NO PREP, real-world science WHODUNNIT investigation focused on condensation and phase changes.In this structured investigation, students examine real-world conditions, analyze data tables, evaluate temperature and humidity changes, eliminate possible causes, and constr

7th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-5+1

The Water Purification Mystery - Chemistry Detective Activity | Treatment

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on water purification and treatment systems. In this case file activity, students analyze water quality data, examine filtration results, evaluate settling processes, investigate chemical treatme

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science

The Case of the Shrinking Balloon - Physical & Chemical Change Activity

Created by
TWFScience

Engage your students with this NO PREP, real-world science WHODUNNIT investigation focused on gas behavior and temperature changes.In this structured investigation, students examine real-world conditions, analyze data tables, evaluate temperature changes, eliminate possible causes, and construct a s

7th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-5+1

The Unknown Substance Mystery - A Physical and Chemical Properties Activity

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on identifying unknown substances using physical and chemical properties. In this mystery activity, students analyze solubility data, examine texture and appearance observations, evaluate chemica

6th - 10th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-3+3

Also included in: Science Detective Mystery Bundle | Chemistry, Human Body, Environmental Science