W1:Day 2: Introduction to Chemistry

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Introduction to Chemistry - Day 1

Objective:

Introduce students to the basics of chemistry, its branches, and the scientific method while encouraging them to explore how chemistry applies to their everyday lives.

Class Activities

1. 10-Minute Launch

  • Video (5 Minutes): Play an engaging video titled "What is Chemistry and Why Does it Matter?"[1] to provide an overview of chemistry, its branches (organic, inorganic, physical, analytical, biochemistry), and how it impacts daily life.
  • Socratic A/B Questions (5 Minutes): Discuss in small groups:
    1. A: Do you think chemistry is more about discovering things we don’t know? B: Or is it more about applying what we already know to solve problems?
    2. A: Is chemistry more important in understanding natural processes (like how plants grow)? B: Or in creating new materials (like plastics or medicines)?
    3. A: Do you think chemistry is mostly about studying tiny particles we can’t see? B: Or is it more about how those particles combine and react to create the world around us?

Encourage students to share a few thoughts after each question.

3. 10-15 Minute Landing

  • Group Presentations (10 Minutes): Each group presents their findings in a 2-minute presentation.
  • Reflection Questions (5 Minutes):
    • What surprised you about chemistry in everyday life?
    • How does chemistry connect to your personal interests or future goals?
    • If you could design a chemistry experiment, what would you study?

Kits with Instructions and Materials

Kit 1: Everyday Chemistry

Materials: Kit 1: Chemistry card set

  • Everyday item cards Kit 1: Chemistry card set
  • Laminated "Mystery Chemistry Processes" card set (e.g., rusting, fermentation, combustion)
  • Reference sheet on basic chemistry concepts (e.g., reactions, catalysts)
  • Chart paper and markers

Instructions:

  1. Identify 5 everyday items or activities involving chemistry.
  2. Explain the role of chemistry in each.
  3. Choose a "mystery" process and research how it works.

Presentation Cards:

  • "What everyday items or activities did you choose?"
  • "How does chemistry play a role in the 'mystery' process you selected?"

Timer/Checklist:

  • 10 min: Select items/activities.
  • 20 min: Research the role of chemistry.
  • 15 min: Investigate the mystery process.
  • 5 min: Prepare presentation.

'COPY THE INSTRUCTIONS AND PASTE WITH YOUR SUBMISSION TO JOURNEY TRACKER

  • Upload your notes from the other team presentations.
  • "What new connections did you discover between chemistry and everyday life?"
  • "What was the most surprising application of chemistry?":

Kit 2: Branches of Chemistry Scavenger Hunt

Materials: Kit 2 Materials: Branches of Chemistry Scavenger Hunt

  • Laminated chart defining the branches of chemistry (organic, inorganic, physical, analytical, biochemistry)
  • Picture cards of real-world examples (e.g., medical lab, fuel cell, food production)
  • Blank poster board and colored markers

Instructions:

  1. Match real-world examples to the five branches of chemistry.
  2. Create a diagram linking these examples to everyday activities.

Presentation Cards:

  • "What examples did you find for each branch of chemistry?"
  • "How are these branches connected to everyday life?"

Timer/Checklist:

  • 15 min: Review branch definitions.
  • 20 min: Match examples and brainstorm connections.
  • 15 min: Create a visual diagram.
  • 5 min: Practice presentation.

Reflection Sheet:

  • "Which branch of chemistry interested you the most, and why?"
  • "How did this activity change your view of chemistry in the real world?"

Kit 3: Testable Questions Lab

Materials: Materials: Kit 3: Testable Questions Lab

  • Brainstorming cards with question prompts (e.g., "What happens when...?" "Does changing X affect Y?")
  • Example experiment design template (with sections for hypothesis, variables, materials, procedure)
  • Chart paper and markers

Instructions:

  1. Brainstorm 5 testable questions related to chemistry.
  2. Choose one question and design an experiment (no lab work required).

Presentation Cards:

  • "What testable questions did you brainstorm?"
  • "Describe your chosen experiment setup and hypothesis."

Timer/Checklist:

  • 15 min: Brainstorm questions.
  • 20 min: Choose a question and design the experiment.
  • 15 min: Create a poster explaining the setup.
  • 5 min: Practice presentation.

Reflection Sheet:

  • "What makes a question testable in chemistry?"
  • "What would you change if you were to conduct the experiment?"

Kit 4: Chemistry in Food

Materials: Materials: Kit 4: Chemistry in Food

  • Reference sheet on common chemical reactions in cooking (e.g., Maillard reaction, acid-base reactions)
  • Example recipes with chemical notes (e.g., baking soda in pancakes, vinegar in pickling)
  • Blank infographic template and colored markers

Instructions:

  1. Research how chemistry is involved in cooking or food preservation.
  2. Create an infographic or poster explaining one example.

Presentation Cards:

  • "What food-related chemistry example did you choose?"
  • "How does chemistry improve or change the process?"

Timer/Checklist:

  • 15 min: Research examples.
  • 20 min: Choose one and design an infographic.
  • 15 min: Prepare explanation.
  • 5 min: Practice presentation.

Reflection Sheet:

  • "What was the most surprising chemistry fact you learned about food?"
  • "How could you use this knowledge in everyday cooking?"

Kit 5: Scientific Method in Action

Materials: Materials: Kit 5: Scientific Method in Action

  • Laminated problem cards (e.g., removing stains, preventing rust)
  • Blank "Scientific Method" outline template (with steps: question, research, hypothesis, experiment, conclusion)
  • Chart paper and markers

Instructions:

  1. Select a real-life chemistry problem.
  2. Use the scientific method to propose a solution and outline how you'd test it.

Presentation Cards:

  • "What problem did you choose to solve?"
  • "Explain how you applied the scientific method."

Timer/Checklist:

  • 15 min: Select a problem and research solutions.
  • 20 min: Outline steps of the scientific method.
  • 15 min: Design a poster explaining the solution.
  • 5 min: Practice presentation.

Reflection Sheet:

  • "How did applying the scientific method help solve the problem?"
  • "What would you change in your proposed solution?"

Submission Instructions

For Journey Tracker Submission:

  • Copy the instructions and paste them with your submission.
  • Upload notes from other team presentations.
  • Answer reflection questions:
    • What new connections did you discover between chemistry and everyday life?
    • What was the most surprising application of chemistry?

Materials Required:

  1. Launch:
    • Video: "What is Chemistry and Why Does it Matter?" (Projector and screen or laptops/tablets).
  2. Challenges:
    • Group resources: Laptops or tablets with internet access.
    • Poster paper or whiteboards for presentations (optional).
    • Markers, pens, or drawing tools.
  3. General Supplies:
    • Access to examples of chemistry in everyday life (e.g., common household items, photos, or articles).
    • Printable diagrams of the scientific method (optional).

Category: What is Chemistry?

  • Matter: Anything that has mass and occupies space.
  • Properties: Characteristics used to describe matter (e.g., color, density, melting point).
  • Chemical Reaction: A process where substances change into new substances.
  • Atom: The smallest unit of an element that retains its chemical properties.
  • Molecular Chemistry: The study of molecules and their interactions.

Category: Branches of Chemistry

  • Organic Chemistry: The study of carbon-containing compounds.
  • Inorganic Chemistry: The study of non-carbon-based substances, such as metals and minerals.
  • Analytical Chemistry: The branch of chemistry focused on identifying the composition of substances.
  • Biochemistry: The study of chemical processes within living organisms.
  • Physical Chemistry: The branch that deals with the relationship between energy and matter in chemical systems.

Category: Everyday Chemistry

  • Baking Soda (Sodium Bicarbonate): A compound used in cooking that produces carbon dioxide when heated or mixed with acids.
  • Oxidation: A chemical reaction where a substance combines with oxygen (e.g., rusting).
  • Vinegar: An acidic liquid often used in cooking and cleaning (acetic acid).
  • Thermal Energy: Heat produced during chemical reactions.
  • Batteries: Portable devices that convert chemical energy into electrical energy.

Category: The Scientific Method

  • Question: A query or observation that begins the scientific method process.
  • Hypothesis: A testable statement or prediction based on observations.
  • Experiment: A procedure to test a hypothesis by controlling variables.
  • Independent Variable: The variable intentionally changed in an experiment.
  • Control Group: The group in an experiment that does not receive the treatment, used as a baseline for comparison.
  • Data: Measurements and observations collected during an experiment.

Category: Chemistry in Food

  • Cream of Tartar: A stabilizing agent often paired with baking soda in baking.
  • Pickling: A preservation method using acidic solutions (e.g., vinegar).
  • Maillard Reaction: A chemical reaction between amino acids and sugars, resulting in browning during cooking.
  • Rennet: An enzyme used to curdle milk during cheese production.
  • Solubility: The ability of a substance to dissolve in a solvent, such as sugar dissolving in water


Final Notes:

  • Presentations: Each group has 5 minutes to present their findings to the class.
  • Teacher Role: Facilitate discussion, clarify concepts, and ensure time management.
  • Assessment Criteria: Creativity, teamwork, accuracy, and clarity of presentation.
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