Parent plan · Week 5 · States of Matter & the Particle Model · Physical Properties & Physical Changes — Science 6: Matter, Energy & Earth Systems
Parent teaching plan · 36 weeksUnits to teach or revisit
Chapter 2 · Matter, Mixtures & Water Properties
Assigned readings
This is the parent timetable. Learners follow chapter and unit names. Each chapter uses four consecutive weeks; dedicated consolidation, project, sample, and exam weeks make the complete 36-week plan.
This week’s goals
- Complete the named teaching, practice, investigation, or assessment tasks.
- Preserve quantities, mechanisms, and a meaningful evidence limit.
- Save a revised explanation and identify any concept needing reteaching.
Read the linked chapter opening and the background/short teaching parts named in each session. All required case information and investigation records are supplied on the site; external references are optional extensions. On assessment days, use the paper’s provided scenarios and relationships.
Five suggested 35–45-minute sessions. Midterm response blocks total 90 minutes; final response blocks total 135. The sample uses 45 minutes. Actual optional drying/observation can span longer intervals; use the supplied records when necessary and extend teaching for comprehension.
Session 1 · States of Matter & the Particle Model · Read and distinguish
A solid usually retains its shape and volume under ordinary conditions. A liquid takes its container’s shape while keeping approximately the same volume. A gas spreads through its available container and is compressible because its particles are far apart. Use the model to explain rather than merely name a state. A solid’s particles are not motionless; they vibrate. Liquids and gases also move, but their spacing and constraints differ. Do not treat dots as grains that can be seen with a classroom lens.
Your task
For States of Matter & the Particle Model, read the background and chapter opening, study Parts 1–2, and write two observation/idea notes with the checkpoint responses. Keep calculations and units when applicable.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
No. Container shape affects height; compare volume with an appropriate method before claiming loss. Particle spacing decreases; the model does not require individual particles to shrink.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 2 · States of Matter & the Particle Model · Model and explain
Water vapor is gaseous water and is usually invisible. The white cloud near a warm source contains tiny liquid droplets. Evaporation can occur at a liquid surface below boiling; boiling involves vapor bubbles forming throughout the liquid under suitable conditions. Track the material through the system boundary. In a closed sample, melting or freezing does not remove water particles. Volume may change because arrangement changes. Ice is less dense than liquid water, an important exception to a simple solids-are-always-denser rule.
Your task
For States of Matter & the Particle Model, study Parts 3–4 and attempt the worked case: Explain both records using particles and system boundaries. Explain the steps before opening the model.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
Melting in the closed sample changes arrangement while retaining its 50 g of water. The open dish loses 6 g from the measured liquid; evaporation is a possible pathway into the air. The water has not been destroyed. Without further records, the mass loss alone does not exclude a spill or specify the evaporation rate over a particular time.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 3 · States of Matter & the Particle Model · Practice, revise and exit
Use practice as evidence of understanding. A selected definition can be checked automatically, while a written explanation needs human comparison with its mechanism and limits.
Your task
For States of Matter & the Particle Model, complete practice questions 1–6 and both choice checks, then answer independently: A learner says a gas has no mass because it cannot be seen. Explain the error. Save a correction explaining one changed claim or method.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
Visibility is not the definition of matter. Gas particles have mass and occupy space; a suitable comparison or measurement can show these properties.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 4 · Physical Properties & Physical Changes · Read and distinguish
Separate a measured property from an impression. Specify lighting for color, temperature for state, and a suitable tool for mass or volume. A single attractive property may not distinguish substances that share it. Ask whether the chemical identity remains, rather than whether the object looks different. Changing shape can be dramatic without producing a new substance. Record what was done and what property changed.
Your task
For Physical Properties & Physical Changes, read the background and chapter opening, study Parts 1–2, and write two observation/idea notes with the checkpoint responses. Keep calculations and units when applicable.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
Different substances can share that appearance. Additional appropriate measurements and known source information are needed. No. A physical change can be difficult to undo; evidence about substance identity is more relevant.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Session 5 · Physical Properties & Physical Changes · Model and explain
Density compares mass with volume: density = mass ÷ volume. Include units such as g/mL or g/cm³. For a uniform material under matched conditions, a larger sample can have more mass while having similar density. An identification claim should use a combination of relevant properties and acknowledge uncertainty. Classroom descriptions can narrow possibilities without proving a unique identity. Avoid tasting, smelling closely, heating, or breaking unknown materials to obtain evidence.
Your task
For Physical Properties & Physical Changes, study Parts 3–4 and attempt the worked case: Calculate density and explain why the shape change is physical under the stated model. Explain the steps before opening the model.
- Prepare (5 minutes): retrieve the relevant idea and state today’s question.
- Read/examine (10 minutes): use the linked unit, diagram, or supplied record; note units and conditions.
- Apply (15–25 minutes): complete the task, showing evidence and reasoning before opening guidance.
- Reflect (5 minutes): revise one choice, explain the correction, and save the work.
Hint and response guidance
Begin with the actual observation, quantity, or diagram relationship. Explain how it bears on the question before making a broad claim.
48 ÷ 24 = 2 g/cm³. Reshaping changes outline while the modeled material and measured mass/volume remain. It is described as physical because no new substance is formed in this model, not simply because the shape might be restored.
- An accurate scientific claim answering the actual question.
- Relevant evidence or a labeled model with quantities and units when applicable.
- Reasoning that connects evidence with the mechanism rather than only repeats it.
- A specific method, boundary, scale, or alternative-explanation limit.
Submit this week
- For Physical Properties & Physical Changes, study Parts 3–4 and attempt the worked case: Calculate density and explain why the shape change is physical under the stated model. Explain the steps before opening the model.
Parent / teacher weekly conference
Read aloud in short sections if needed and ask the learner to explain an observation before its cause. Compare written reasoning with the criteria and actual records, accepting supported alternatives. Keep learner answers and marks separately backed up. No personal disclosure, public posting, or product purchase is required.
- Can the learner state what was observed and what is inferred?
- Are units, time, scale, and boundary appropriate?
- Does the mechanism explain the evidence rather than merely label it?
- What specific distinction needs another example before proceeding?