9th Grade Chemistry Resources

Plastics and their Environmental Impact Bundle - Microplastics | High School

Created by
TWFScience

This NO-PREP bundle includes lessons, readings, worksheets, and multiple case studies focused on plastics, microplastics, polymers, and plastic pollution.Students build a deep, evidence-based understanding of plastics as both a scientific innovation and an environmental challenge through a carefully

9th - 11th Chemistry, Earth Sciences, Physical Science

Oobleck: Force vs Flow — Non-Newtonian Fluids STEM Investigation

Created by
TWFScience

Students will investigate non-Newtonian fluids by creating oobleck and testing how different types of force affect whether it behaves like a solid or a liquid. Using cornstarch and water, students observe how fast force causes oobleck to act solid while slow force allows it to flow like a liquid. Th

6th - 11th Chemistry, Physical Science, Physics

Also included in: STEM Investigations Growing Bundle — Scientific Method, Design, Data & CER

Homemade Lava Lamp STEM Investigation - Density & Gas Production

Created by
TWFScience

Students will investigate density, polarity, and gas production by creating a homemade lava lamp and testing how adding different amounts of an effervescent tablet affects liquid motion. Using oil, water, food coloring, and tablets, students observe how gas bubbles change density, causing colored li

6th - 11th Chemistry, Physical Science, Physics

Also included in: STEM Investigations Growing Bundle — Scientific Method, Design, Data & CER

Valentine's Day Lava Lamp STEM Investigation - Density & Gas Production

Created by
TWFScience

Students will investigate density, polarity, and gas production through a Valentine’s Day–themed lava lamp investigation. Using oil, water, food coloring in Valentine colors, and heart-themed effervescent tablets, students explore how chemical reactions can make liquids move in surprising ways—perfe

6th - 11th Chemistry, Physical Science, Physics

Also included in: Valentine's Day Science Activities | STEM, Project, Readings | High School

The Chemistry of Chocolate Reading | Grade 8 & Up | Phase Changes of Matter

Created by
TWFScience

The Chemistry of Chocolate: Why It Melts in Your Mouth Reading Comprehension Passage and Questions. The Chemistry of Chocolate is a high-interest chemistry topic that helps students explore how particle motion, energy, and phase changes explain a familiar everyday experience—chocolate melting as we

8th - 12th Science, Chemistry, Physical Science

Also included in: Valentine's Day Science Activities | STEM, Project, Readings | High School

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 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

Chemistry in Everyday Life Detective Mystery Bundle | Physical Science Activity

Created by
TWFScience

This BUNDLE is composed of high-engagement, no-prep Chemistry in Everyday Life activities that grow with you. This bundle consists of mystery activities that examine everyday chemical reactions and guide your students through evidence analysis, pathway tracking, suspect ranking, and Claim–Evidence–R

7th - 11th Chemistry, General Science, Physical Science

NGSS MS-PS1-1, MS-PS1-2, MS-PS1-4+2

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