States of Matter Review

Overview

This 60-minute revision session is designed for a class of 30 Grade 7 students, following the Alberta 7 Science curriculum. The lesson consolidates student understanding of the unit on States of Matter (Solid, Liquid, Gas) and related concepts such as particle movement, energy changes, and phase transitions. Activities are varied and interactive, with scaffolding and dyslexia-friendly supports to engage all learners.

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Curriculum Connections

Alberta 7 Science Curriculum - Matter and Energy

• 7 – 2: Describe and explain physical properties and changes in matter.
• 7 – 3: Demonstrate understanding of the particle nature of matter and energy change during phase transitions.
• General Outcome C: Understand relationships between substances, forms of matter, and changes in matter.

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Learning Objectives (I Can Statements)

• I can describe the characteristics of solids, liquids, and gases.
• I can explain how particles behave in different states of matter.
• I can identify and describe phase changes (melting, freezing, evaporation, condensation).
• I can relate energy changes to phase transitions.
• I can demonstrate my understanding through discussion, models, and a quiz.

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Success Criteria

• I can correctly match solids, liquids, and gases with their particle arrangements.
• I can explain at least three types of phase changes, using appropriate vocabulary.
• I can describe particle speed and energy levels in each state.
• I can successfully answer quiz questions with 80% accuracy or higher.
• I can participate confidently in group activities and discussions.

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Materials

• Printed diagrams and Paragraph packs (from uploaded images: visuals illustrating particle arrangements and phase changes)
• Phase change vocabulary cards (melting, freezing, evaporation, condensation)
• Whiteboard and markers
• Mini handouts with dyslexia-friendly fonts and colour coding
• Quiz sheets for assessment
• Modelling clay or playdough (to physically demonstrate particle spacing)

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Lesson Breakdown

1. Introduction & Recap (10 min)

• Teacher Activity: Use the provided images from WhatsApp files showing particle diagrams and phase change terminology to recall the unit concepts.

  • Ask: "What did we learn about solids, liquids, and gases?"
  • Display simplified diagrams from the references showing particle arrangements and label key terms (using dyslexia-friendly fonts and colours).

• Student Activity:

  • Turn and talk with a partner using “I can” statements:
    • “I can explain how particles move in solids, liquids, and gases.”

• Differentiation:

  • Visual learners: Use diagrams with colour coding from the references.
  • ELL & dyslexic students: Provide sentence starters and simplified key vocabulary lists.

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2. Concept Mapping & Guided Practice (15 min)

• Teacher: Provide a partially completed concept map on the whiteboard linking states of matter, particle speed, and energy changes.
• Students: In groups of 4-5, complete their own concept maps using coloured markers and the vocabulary cards.
• Success Criteria Check: Encourage groups to reflect on whether their maps show key relationships like:
  • Faster particles = gas, Slower particles = solid.
  • Energy added = melting/evaporation.
  • Energy removed = freezing/condensation.
• Extension for Advanced Learners: Add how plasma differs or discuss sublimation.
• Differentiation: Assign mixed-ability groups. Provide extra scaffolding with step-by-step instructions and visual prompts for struggling learners.

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3. Hands-On Particle Model Activity (15 min)

• Teacher: Demonstrate how to model particles in each state using modelling clay/playdough balls spaced appropriately to show closeness or distance between particles.
• Students: Create their own models in pairs, explaining verbally or in writing:
  • Particle arrangement.
  • How particles move and how energy affects them.
• Use Dyslexia-Friendly Labels: Give pre-printed labels to place next to models.
• Assessment: Circulate and ask probing “I can” questions to each pair for formative assessment.
• Differentiation:
  • Use tactile support for kinesthetic learners.
  • Provide sentence frames for ELL students to help explain their models.

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4. Quiz & Reflection (15 min)

• Teacher: Hand out a short quiz using multiple choice, true/false, and short answer questions based on unit key points, aligned with Alberta Assessment Standards. Questions reflect images and vocabulary from references; e.g., "Which state has particles packed tightly together?"
• Students: Complete the quiz individually.
• Reflection: End the quiz answering a reflection prompt:
  • “Which ‘I can’ statement am I confident about? Which one do I still find tricky?”
• Extension: Students who finish early can write a paragraph on how energy changes affect daily life (melting ice, boiling water).
• Differentiation: Dyslexia-friendly quiz format with clear font, spacing, and contrast.

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5. Closing & Homework (5 min)

• Review one strong example from the quiz or model activity.
• Assign homework: Create a mini-poster or infographic representing one phase change with diagrams and “I can” statements. Use digital or paper format.
• Announce that posters will be displayed next class to support peer learning.

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Differentiation Summary

Learner Need	Strategy
Visual Learners	Colour-coded diagrams, concept maps, modelling activity.
Dyslexic Learners	Dyslexia-friendly fonts, high contrast materials, sentence frames, simplified texts.
ELL Students	Vocabulary lists, sentence starters, peer support.
Advanced Learners	Extension tasks on plasma, sublimation, energy in daily life.
Kinesthetic Learners	Hands-on clay particle models.

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Assessment

• Formative: Observations, questioning during activities, concept map accuracy.
• Summative: Quiz results with 80% accuracy benchmark.
• Self-assessment: Reflection prompt on confidence with “I can” statements.

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Notes to Teacher

• Encourage students to verbalize explanations frequently to boost comprehension and communication skills.
• Use the uploaded images as visual aids or handouts throughout.
• Adapt pace based on student engagement and understanding; allow flexibility for deeper group discussions if needed.

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This detailed, student-centred revision plan nurtures deep understanding of matter states aligned with Alberta's curriculum and enhances engagement through multi-sensory and inclusive teaching.