W1:Day 3: Matter and Its Properties

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W1:Day 3: Matter and Its Properties []

Matter and Its Properties


Objective:

Explore the concept of matter, its properties, and how they can be observed and measured. Engage students in hands-on challenges to connect theoretical concepts with real-world applications.


Structure

1. Launch (10 minutes)

Video (5 Minutes):

Play an engaging video titled "What is Matter? Understanding Properties and States." [1] The video should cover:

  • Definition of matter (mass and volume).
  • States of matter (solid, liquid, gas, plasma).
  • Physical properties (color, texture, density, boiling/melting point).
  • Chemical properties (flammability, reactivity).

Socratic A/B Questions (5 Minutes):

Divide students into small groups to discuss these A/B questions:

  1. A: Is matter defined more by its mass? B: Or is it more about the space it occupies?
  2. A: Are physical properties (like color or texture) more important for understanding matter? B: Or are chemical properties (like reactivity or flammability) more significant?
  3. A: Do you think the states of matter (solid, liquid, gas) are fixed? B: Or do you think they’re constantly changing depending on conditions?

Encourage each group to share one key takeaway from their discussions.


2. 90-Minute Challenge

Main Activity:

Students will work in small groups to explore matter and its properties through one of the following challenge variations. At the end, each group presents their findings.


Challenge Variations (Choose One Per Group):
  1. Identifying Properties of Common Materials :
    • Examine 5 everyday materials (e.g., water, wood, plastic, metal, glass).
    • List their physical and chemical properties (e.g., density, boiling point, flammability).
    • Bonus: Predict how each material might react to heat or pressure.
  2. States of Matter Experiment :
    • Observe how matter changes states by melting ice, boiling water, and condensing steam.
    • Create a diagram illustrating the transitions (solid → liquid → gas).
    • Bonus: Explain the role of energy in these transitions.
  3. Density and Buoyancy Test :
    • Predict whether various objects (e.g., coin, sponge, oil, or wood) will float or sink in water.
    • Measure the density of each object using the formula: Density = Mass/Volume.
    • Bonus: Explain how density affects buoyancy.
  4. Chemical Reaction Exploration :
    • Observe a simple reaction, such as vinegar and baking soda.
    • Record changes in physical and chemical properties (e.g., gas formation, color change).
    • Bonus: Explain why this is a chemical reaction, not just a physical change.
  5. Mystery Matter Lab :
    • Investigate a “mystery substance” (e.g., a sugar solution or baking soda mixture).
    • Test its properties (solubility, density, reaction with acid).
    • Bonus: Identify the substance based on your observations.

3. Landing (10-15 Minutes)

Group Presentations (10 Minutes):

Each group delivers a 2-minute presentation summarizing:

  • What they learned about their challenge.
  • How the properties of matter helped them understand the world around them.

Reflection Questions (5 Minutes):

Discuss as a class:

  1. What was the most surprising property of matter you observed today?
  2. How do physical and chemical properties affect the way we use materials in daily life?
  3. If you could design a new material with unique properties, what would it be like?

Materials Required

Launch:

  • Video: "What is Matter? Understanding Properties and States" [2] (projector or devices).

Challenges:

  • Everyday materials (e.g., water, wood, plastic, metal, glass).
  • Ice cubes, a kettle or hot plate, and a clear glass for boiling water.
  • Objects of varying densities (coin, sponge, oil, wood).
  • Vinegar, baking soda, measuring tools (graduated cylinder, scale).
  • Mystery substances (e.g., sugar solution, flour, salt).
  • Chart paper, markers, and pencils for diagrams and presentations.

Vocabulary List

  • Matter: Anything with mass and volume.
  • Physical Properties: Observable characteristics of matter (e.g., texture, density).
  • Chemical Properties: Characteristics that describe how matter reacts (e.g., flammability).
  • States of Matter: Solid, liquid, gas, and plasma.
  • Density: Mass per unit volume (D = M/V).
  • Buoyancy: The ability of an object to float in a fluid.
  • Energy Transfer: The movement of energy during state changes.
  • Chemical Reaction: A process where substances combine or break apart to form new substances.

Jeopardy Questions

Category: What is Matter?

  • $100: The two key characteristics of matter. (What are mass and volume?)
  • $200: The term for matter with a fixed volume but no fixed shape. (What is a liquid?)
  • $300: This is the most abundant state of matter in the universe. (What is plasma?)
  • $400: A property of matter that determines whether it will sink or float. (What is density?)

Category: Properties of Matter

  • $100: This physical property measures how much space matter takes up. (What is volume?)
  • $200: A substance’s ability to burn is an example of this type of property. (What is a chemical property?)
  • $300: The temperature at which a solid becomes a liquid. (What is the melting point?)
  • $400: The characteristic of a substance that can be stretched into a wire. (What is ductility?)

Category: States of Matter

  • $100: The process of a liquid becoming a gas. (What is evaporation?)
  • $200: The state of matter with the least energy. (What is a solid?)
  • $300: When a gas turns into a liquid. (What is condensation?)
  • $400: The change from a solid directly to a gas. (What is sublimation?)

Category: Chemical Changes

  • $100: The gas released when vinegar reacts with baking soda. (What is carbon dioxide?)
  • $200: This type of change creates a new substance. (What is a chemical change?)
  • $300: The process where iron reacts with oxygen to form rust. (What is oxidation?)
  • $400: An example of a chemical change you can observe in cooking. (What is caramelization?)