High School Biology Resources

The Forever Chemicals Mystery – Detective SUB PLAN | Human Impact, PFAS

Created by
TWFScience

Turn your students into science detectives with this engaging, real-world investigation focused on forever chemicals (PFAS) and environmental contamination. In this case file activity, students analyze evidence, track chemical pathways, interrogate suspects, and build a scientific case to solve the

6th - 9th Biology, Earth Sciences, Marine Science

NGSS MS-LS2-1, MS-LS2-4, MS-LS2-5+3

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

The Light Pollution Mystery – Detective SUB PLAN | Human Impact on Ecosystems

Created by
TWFScience

Turn your students into science detectives with this engaging, real-world investigation focused on light pollution and artificial nighttime lighting. In this case file activity, students analyze evidence, track environmental pathways, interrogate suspects, and build a scientific case to solve the my

6th - 9th Biology, Earth Sciences, Marine Science

NGSS MS-LS2-1, MS-LS2-4, MS-LS2-5+3

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

The Urban Heat Island Mystery – Detective SUB PLAN | Human Impact

Created by
TWFScience

Turn your students into science detectives with this engaging, real-world investigation focused on the urban heat island effect and rising city temperatures. In this case file activity, students analyze evidence, track environmental pathways, interrogate suspects, and build a scientific case to solv

6th - 9th Biology, Earth Sciences, Physical Science

NGSS MS-LS2-1, MS-LS2-4, MS-LS2-5+3

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

Winter Weather Adaptations Ecology Research Project - Structural and Behavioral

Created by
TWFScience

In this project, your students will explore how animals survive extreme winter conditions through specialized structural and behavioral adaptations. Students investigate how cold temperatures, snow, wind, and limited food shape animal survival strategies, and how these adaptations help organisms rem

6th - 9th Science, Biology, Earth Sciences

NGSS MS-LS1-4, MS-LS1-5, MS-LS4-4

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

The Circulatory System Breakdown Mystery – Detective SUB PLAN | Body Systems

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on the circulatory system and what happens when blood flow breaks down. In this case file activity, students analyze oxygen and blood flow data, examine narrowed arteries and weak heart muscle ev

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Digestive System Malfunction Mystery – Detective SUB PLAN | Body Systems

Created by
TWFScience

The Digestive System Malfunction Mystery - Turn your students into science detectives with this engaging, real-world investigation focused on the digestive system and what happens when digestion and nutrient absorption break down. In this case file activity, students analyze medical evidence, track

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Viral vs Bacterial Illness Mystery – Detective SUB PLAN | Human Body Systems

Created by
TWFScience

The Viral vs. Bacterial Illness Mystery - Turn your students into science detectives with this engaging, real-world investigation focused on viral and bacterial illnesses and why these infections can be difficult to tell apart. In this case file activity, students analyze medical evidence, track inf

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Cellular Respiration Breakdown Mystery – Detective SUB PLAN | Body Systems

Created by
TWFScience

The Cellular Respiration Breakdown Mystery - Turn your students into science detectives with this engaging, real-world investigation focused on cellular respiration and what happens when cells cannot produce enough energy to meet the body’s needs. In this case file activity, students analyze medical

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Stress Response & Health Breakdown Mystery – Detective SUB PLAN | Systems

Created by
TWFScience

The Stress Response & Health Breakdown Mystery - Turn your students into science detectives with this engaging, real-world investigation focused on the human stress response and what happens when stress becomes chronic. In this case file activity, students analyze medical evidence, track hormone

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Integumentary System Disorder Mystery – Detective SUB PLAN | Body Systems

Created by
TWFScience

The Integumentary System Disorder Mystery - Turn your students into science detectives with this engaging, real-world investigation focused on the integumentary system and what happens when the skin can no longer protect the body or regulate temperature effectively. In this case file activity, stude

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Respiratory System Failure Mystery – Detective SUB PLAN | Human Body Systems

Created by
TWFScience

The Respiratory System Failure Mystery - Turn your students into science detectives with this engaging, real-world investigation focused on the respiratory system and what happens when breathing and gas exchange break down. In this case file activity, students analyze medical evidence, track respira

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Antibiotic Resistance Mystery – Detective SUB PLAN | Bacteria, Germ Theory

Created by
TWFScience

The Antibiotic Resistance Mystery - Turn your students into science detectives with this engaging, real-world investigation focused on antibiotic resistance and what happens when bacterial infections no longer respond to treatment. In this case file activity, students analyze medical and laboratory

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Oxygen Delivery Crisis Mystery – Detective SUB PLAN | Human Body System

Created by
TWFScience

The Oxygen Delivery Crisis Mystery – Turn your students into science detectives with this engaging, real-world investigation focused on oxygen delivery in the human body and what happens when oxygen fails to reach cells efficiently—even when breathing appears normal. In this case file activity, stud

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Substance Abuse Impact on Body Systems Mystery – Detective SUB PLAN Activity

Created by
TWFScience

The Substance Abuse & Impact on Body Systems Mystery – Turn your students into science detectives with this engaging, real-world investigation focused on substance use and how vaping, smoking, and alcohol affect multiple body systems. In this case file activity, students analyze medical and labo

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

Human Body Systems and Health Detective Mystery Bundle | Activity SUB PLAN

Created by
TWFScience

Build a high-engagement, low-prep human body system and health program that grows with you. This bundle collects my Human Body Systems and Health Detective Mystery Case Files—each one built around real-world body system and health problem, evidence analysis, pathway tracking, suspect ranking, and Cl

7th - 11th Anatomy, Biology, General Science

Earth Day Countdown | 22 Environmental Science Starter Slides | Earth Day Warmup

Created by
TWFScience

Earth Day Countdown – Class Starter Discussion Slides & Teacher Guide. 22 Days of Discussion and Collaboration. Fully editable.Looking for an engaging way to spark meaningful conversations about environmental issues leading up to Earth Day or just how humans impact the environment? This Earth Da

6th - 11th Biology, Earth Sciences, Marine Science

NGSS MS-LS2-1, MS-LS2-4, MS-ESS3-1+9

Earth Day Countdown | Environmental Class Starter 3-DAY SAMPLE

Created by
TWFScience

Earth Day Countdown SAMPLE – Class Starter Discussion Slides & Teacher Guide. 3 Days of Discussion and Collaboration. The full version - Earth Day Countdown | 22 Environmental Class Starter Slides for Discussion and Collaboration can be found by clicking here.The full version contains 22, fully

6th - 11th Biology, Earth Sciences, Marine Science

NGSS MS-LS2-1, MS-LS2-4, MS-ESS3-1+9

The Blood Sugar Balance Mystery – Detective SUB PLAN | Insulin, Cells, Pancreas

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on health and blood glucose balance. In this case file activity, students analyze medical data, examine laboratory test results, track hormone pathways, interrogate suspects, and build a scientif

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Foodborne Illness Outbreak Mystery – Detective SUB PLAN | Salmonella

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on foodborne illness and digestive system infection. In this case file activity, students analyze medical data, examine laboratory test results, track pathogen pathways, rank possible causes, and

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Musculoskeletal System Injury Mystery – Detective SUB PLAN | Bones, Tendons

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on musculoskeletal system injuries and movement breakdown. In this case file activity, students analyze strength test data, examine range-of-motion measurements, investigate posture assessments,

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Nutrition & Diet Health Mystery – Detective SUB PLAN | Vitamins, Minerals

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on nutrition, diet, and whole-body health balance. In this case file activity, students analyze medical data, examine laboratory test results, track nutrient pathways, rank possible causes, and b

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Sleep Deprivation Health Mystery – Detective SUB PLAN | Circadian Rhythm

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on sleep deprivation and whole-body health disruption. In this case file activity, students analyze sleep logs, examine laboratory test results, track hormone pathways, rank possible causes, and

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Autoimmune Disorder Mystery – Detective SUB PLAN | Immunity, Body Systems

Created by
TWFScience

Turn your students into science detectives with this NO PREP, engaging, real-world investigation focused on immune system malfunction and autoimmune disorders. In this case file activity, students analyze laboratory data, examine inflammatory markers, evaluate antibody test results, track immune pat

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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

The Blood Types Mystery – Detective SUB PLAN | ABO, Rh factor, Body Systems

Created by
TWFScience

Create a classroom full of science detectives with this NO PREP, engaging, real-world investigation focused on blood types, transfusion compatibility, and immune system response. In this case file activity, students analyze laboratory results, examine transfusion reactions, track antibody pathways,

7th - 11th Anatomy, Biology, General Science

NGSS MS-LS1-1, MS-LS1-2, MS-LS1-3+4

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