Which Freezes First: Hot or Cold Water?

Which Freezes First: Hot or Cold Water?

Lesson 12 of 18 in this unit

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  • Primary
  • Year 3
  • Science
  • Chemistry
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Lesson summary

Students conduct an experiment that demonstrates how removing heat energy leads to a change of state.

Learning intentions:

Students will...

  • investigate how removing heat energy leads to a change of state in some liquids.

Success criteria:

Students can...

  • conduct an experiment to prove a theory. 

Lesson guides and printables

Lesson Plan
Student Worksheet

Curriculum links

Select your curriculum from the options below.

Lesson details

Curriculum Mapping

Australian Curriculum (v9.0) content descriptions:

Science:

Students learn to:
investigate the observable properties of solids and liquids and how adding or removing heat energy leads to a change of state (AC9S3U04)

Relevant parts of Year 3 achievement standards:
By the end of Year 3, students describe how to cause a change of state.

Resources required

  • clock or timer
  • cold water
  • freezer
  • foam cups x 2
  • hot water
  • pen.

Skills

This lesson is designed to build students’ competencies in the following skills:

  • curiosity
  • reflection
  • critical thinking

Additional info

Level of teacher scaffolding: Medium - support students in the theories, practical experimentation, and explaining and recording their observations. 

Related professional learning

How to Teach Science More Effectively

Quick summary: This course will help teachers better understand and apply evidence-based tools for effective science teaching.

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