Heating & Cooling Changes
Observe and describe that some materials change state when heated or cooled, and measure the temperature at which changes occur in degrees Celsius
Lesson
Set out your lesson
“Heating & Cooling Changes means observing how heating and cooling can change materials. We will practise once together, then check a fresh example.”
Bring to the table
- Ice cube or cold pack
- Warm (not hot) water cup adult-controlled
- Observation notebook
Extra for the adult
Worked example. Cooling water can freeze it into ice. Heating ice can melt it back into water.
Optional challenge. For Heating & Cooling Changes, add freezing as the reverse.
What to notice. Keep one parent note: heating/cooling change observed; support used. This session samples state changes, not mastery of thermal physics.
Share and support
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Teaching approaches
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2 approaches
Heating & Cooling Changes means observing how heating and cooling can change materials. We will practise once together, then check a fresh example.
Spend about 12 minutes on Heating & Cooling Changes, then checking one fresh example.
Explain melting/freezing and read Celsius changes without a boiling experiment.
Explain melting/freezing and read Celsius changes without a boiling experiment.
Family records and proof options
Keep a record of your learning
Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.
Practice this concept
Start practiceHeating & Cooling Changes practice
Choose heating and cooling changes.
Free · no login · no ads · Practice answers and completion are not saved. Parent observation remains the lesson record.
Learning resources
Extra practice links — they do not replace Gakuva’s teaching approach.
PhET Interactive Simulations · Practice link — not the full lesson
States of Matter: Basics
Before you open · source notes
States of Matter: Basics supports hands-on exploration for Heating & Cooling Changes. Not every lab worksheet.
Free interactive page, no sign-in required for the tested path.
Before you openAsk the learner what they changed in the sim or page and what they observed.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public PhET Interactive Simulations page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.
PhET Interactive Simulations. “States of Matter: Basics.” External page; Gakuva does not copy, host, embed, or redistribute materials.
Unknown — link only
Check understanding
- Describe melting (solid to liquid) and freezing (liquid to solid) with everyday examples
- State that water freezes at 0°C and boils at 100°C
- Explain that heating adds energy causing particles to move more, leading to state changes
“Can your child explain what happens to an ice cube when you heat it, and at what temperature water freezes and boils?”
Curriculum record
- Type
- Conceptual
- Subject
- Science
- Domain
- Matter & Materials
- Age range
- Ages 7–11
Standards