Heating & Cooling Changes

ScienceMatter & MaterialsAges 7–9

Observe and describe that some materials change state when heated or cooled, and measure the temperature at which changes occur in degrees Celsius

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Teaching Table

Set out your lesson

Explain melting/freezing and read Celsius changes without a boiling experiment.

Activity

Can attend to a short explanation and respond orally, by pointing, drawing or writing; check relevant prerequisite understanding rather than assuming age proves readiness.

Policy

Check readiness rather than assuming age or source graph order establishes attainment.

Materials

Prepared passage, worksheet materials are available in each step.

Preparation

Open the teaching material first. Keep the adult key and check sheet separate until their named stage. No printing, purchase or external media is required for the supplied adapted text tasks.

Safety

No stove, flame, hot water or boiling trial. Optional adult-managed ice melting at room temperature only; wipe spills.

Optional Observation

Only record a real observation after the activity is actually carried out safely; otherwise mark not carried out.

Materials are ready in each step. Use them on screen or print just the current step. Put teaching examples aside before the learner tries.

What this lesson covers and its limits

These are bounded opportunities, not learner attainment. Partial and blocked source requirements remain so.

blocked: Observe and describe that some materials change state when heated or cooled, and measure the temperature at which changes occur in degrees Celsius
Exact source demand not established: Canonical unqualified 0/100°C values need pressure/purity context.; No thermometer measurement performed; table is invented practice. Real observation/media-dependent evidence remains conditional where required.
partial: Describe melting (solid to liquid) and freezing (liquid to solid) with everyday examples
Bounded task opportunity only; this task samples the clause using repeated-application evidence, not full coverage or learner attainment.
partial: State that water freezes at 0°C and boils at 100°C
Bounded task opportunity only; this task samples the clause using repeated-application evidence, not full coverage or learner attainment.
partial: Explain that heating adds energy causing particles to move more, leading to state changes
Bounded task opportunity only; this task samples the clause using repeated-application evidence, not full coverage or learner attainment.
partial: Can {{name}} explain what happens to an ice cube when you heat it, and at what temperature water freezes and boils?
Bounded task opportunity only; this task samples the clause using repeated-application evidence, not full coverage or learner attainment.

Canonical unqualified 0/100°C values need pressure/purity context.
No thermometer measurement performed; table is invented practice.

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Explain melting/freezing and read Celsius changes without a boiling experiment.

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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 7–9

Standards

ngss-k5:2-PS1-4uk-nc-2013:Y4.Sci.SM.2