Learning Goals
Learning Goals:
- Students will develop a model through collaborative inquiry to explain thermal kinetic energy and predict the outcome when heat is added to a substance.
- Students will build argumentation from evidence skills through collaborative sense-making and gallery walk presentations.
- Students will develop a model of atomic and molecular structures.
Materials List
Handouts
- Water Intro Exploration
- Investigation Planning Sheet
- Thermal Energy Writing Guide
- Thermal Energy Rubric
- Phase Change Foldable
- Phase Change Rubric
- Middle School Chemistry: Chapter 4, Lesson 3 Activity Sheet: Periodic Table Cards
- Middle School Chemistry: Chapter 4, Lesson 4 Activity Sheet
- Middle School Chemistry: Chapter 4, Lesson 5 Activity Sheet
Classroom Supplies
- White board, large chart paper, or butcher paper
- Markers
- Erasers
Group Supplies (3-4 per group)
Water Exploration Lab
- 4 Index cards covered in wax or laminated
- 4 Plastic pipettes
- 3 Plastic cups or beakers (one hot, one cold, one room temperature H2O)
- 1 Ice cube in a small container
- 2 Small containers with six drops of food coloring (one yellow, one blue)
Thermal Energy and Matter
- 1 Hot plate
- 1 Digital or triple beam balance
- 1 Glass beaker, 150-250mL
- 1 Beaker tongs
- 1 Graduated cylinder
- 1 Thermometer
- 1 Timer
- Access to ice and water
Phase Change Observations
- 2 Quart size ziploc bags
- A pitcher of hot water (50°C)
- Room temperature water
- 2 Squares of brown paper towel
- 2 Droppers/pipettes
- 2 Short, wide rimmed clear plastic cups
- 2 Tall, smaller rimmed plastic cups
- Ice
- Magnifier
Heat Curve of Water Data Collection
- Ice
- Heat safe beakers
- Thermometers
- Timers
- Hot plate
- Beaker tongs
- Optional: Vernier temperature probes with LabQuest or GoLink
- Optional: Chromebook or laptop
Atomic Structure
- Strips cut from plastic bags
Covalent and Ionic Bonding
- 9-Volt battery
- 2 Wires with alligator clips on both ends
- Water
- Salt
- Clear plastic cup
- Tape
- Black paper
- Cup with salt from evaporated sea water
- Magnifier
- Permanent marker
Polarity of Water
- Permanent markers (blue and red)
- Isopropyl alcohol (70% or higher)
- Water
- Brown paper towel
- Droppers
Important Links
Next Generation Science Standards
Next Generation Science Standards
| Performance Expectation | How is this Assessed? |
| MS-PS1-1: Develop models to describe the atomic composition of simple molecules and extended structures. | Students will use drawings and 3D models to represent atoms, molecules, and crystalline structures. Students will be assessed on their explanation of how the model accurately represents these structures as we understand them to exist, while differentiating them from how these structures function in reality. |
| MS-PS1-4: Develop a model that predicts and describes changes in particle motion, temperature, and state of a pure substance when thermal energy is added or removed. | Students engage in collaborative inquiry to characterize the changes in temperature when water is heated, particularly in the context of cooking and sterilization. |