Linked Through Learning

9th Grade Instruction

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Cell Organelle Detective – Use Clues to Solve TWO Cell Organelles Mysteries

Created by
TWFScience

Cell Detectives: Solving Cell Structure & Function Mysteries - Hands-On Cell Organelles Case File ActivitiesTurn your students into cell detectives with these engaging, evidence-based mystery investigations! In this interactive activity set, students analyze clues, match symptoms to organelle fu

6th - 9th Biology, General Science

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

$3.97

$2.97

Cell Organelles Logic Puzzles - Determine the Mystery Organelle Activities

Created by
TWFScience

Cell Organelles Activity - FOUR Logic Puzzles that let your students become cell organelle detectives Looking for a way to teach cell organelles that goes beyond worksheets and memorization?This Mystery Organelle Logic Lab challenges students to use deductive reasoning, evidence, and scientific thin

6th - 9th Biology, General Science

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

$2.97

Biology Case Study - CRISPR and Sickle Cell Disease | Reading

Created by
TWFScience

Biology Case Study “CRISPR and Sickle Cell Disease”This resource provides an engaging look at how CRISPR gene editing is being used to fix mistakes in DNA through a real-world case study of sickle cell disease. Students explore how DNA acts as the instruction code for cells and how changes in struct

7th - 10th Biology, General Science

Also included in: Science Case Study Bundle - Ecology, Chemistry, Physics, Biology, and Space

$0.97

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

Bundle (7 products)

$23.29

$13.19

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

$2.97

Crash Course Video Worksheets Mega Bundle | Life and Physical Science Sub Plan

Created by
TWFScience

Crash Course Ultimate Video Series Worksheet Bundle with answer key. Whether you are introducing a topic, reviewing a concept, or leaving as a sub plan, my Crash Course video worksheets are a terrific solutions. Get ALL my worksheets for the price of two bundles - you save 96%!Buyer Comments:⭐️⭐️...

6th - 12th Science, Biology, General Science

Bundle (306 products)

$727.56

$32.33

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

$2.97

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

$2.97

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

Bundle (6 products)

$17.82

$8.40

Flowers, Pollinators, Ecosystems and Human Impact – Flower Ecology Project

Created by
TWFScience

In this project, your students will explore how flowering plants depend on pollinators and healthy ecosystems, and how human activities affect the survival of pollinators and the plants—and foods—people rely on every day. Students will investigate how pollination works, why pollinators are essential

7th - 9th Science, Biology, Earth Sciences

NGSS MS-LS2-2, MS-LS2-4, MS-LS2-5

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

$3.97

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

Bundle (7 products)

$20.79

$8.40

Net Force - Balanced vs Unbalanced Forces STEM Investigation

Created by
TWFScience

In this hands-on STEM investigation, students will explore net force, balanced forces, and unbalanced forces by analyzing force interactions in the horizontal direction. Using force diagrams and simple calculations, students learn how multiple forces act on an object and how to determine whether tho

6th - 11th General Science, Physical Science, Physics

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

$2.97

Thermal Insulation STEM Investigation – Keep Ice from Melting! Heat Transfer

Created by
TWFScience

In this hands-on STEM investigation, students will explore heat transfer and thermal insulation by designing and building a container that keeps an ice cube from melting. Using common materials, students test how different insulation designs affect the rate at which ice melts when exposed to room te

6th - 11th General Science, Physical Science, Physics

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

$2.97

Why Do Roads Get Salted? STEM Investigation — Lowering the Freezing Point

Created by
TWFScience

In this hands-on STEM investigation, students explore freezing point depression and phase changes by testing how adding different amounts of salt affects how quickly ice melts. Using real-world winter road safety as the context, students investigate why salt is spread on icy roads and how it changes

6th - 11th General Science, Physical Science, Physics

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

$2.97

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

$3.97

Snow Day Science Activity Bundle - Snow, Snowflakes, Winter | 6th 7th 8th Grade

Created by
TWFScience

The NO-PREP bundle includes a two readings (The Science of Snow, Snowflakes, and Frost / Winter Animal Survival Adaptations and Strategies), two simple at-home investigations (Snow Density and Volume Investigation / Snow vs Ice Activity - Which Melts Faster), and my Winter Weather Adaptations Projec

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

Bundle (3 products)

$9.91

$5.47

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

Created by
TWFScience

This NO-PREP, comprehensive Winter Weather and Snow Bundle guides students through the science of winter by exploring how snow forms, how winter weather works, how animals survive cold environments, and how physical science concepts—such as states of matter, heat transfer, density, freezing point de

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

NGSS MS-LS4-2, MS-LS4-4, MS-ESS2-1+4

Bundle (12 products)

$41.14

$14.97

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

$3.97

$2.97

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

Free

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

$3.97

$2.97

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

$3.97

$2.97

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

$3.97

$2.97

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

$3.97

$2.97

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

$3.97

$2.97