Quick summary: In this activity students experiment with melting ice using salt and adding colour (paint or food colouring) to the melting ice to create an amazing colour display.
These Snappy Science resources have been created to boost science education in primary schools across Australia. Each lesson is designed to support teachers with the scientific knowledge, ideas and resources to stimulate a sense of wonder and curiosity in their students. Many of the big issues that Australian society will face in the future are around technology, energy, resources and climate change. All of these require students to engage with science – but most of all to enjoy science!
Science at Home: These Snappy Science resources can also be used to engage families in fun science and learning for life. You can download a student friendly version of this activity here and you can also check out the Snappy Science Digital Library.
General capabilities: Critical and creative thinking.
Australian Curriculum content description: This activity is relevant to Science Inquiry Skills across all primary year levels of the Australian Curriculum.
Year 1 Science
- Everyday materials can be physically changed in a variety of ways (ACSSU018)
Year 2 Science
- Different materials can be combined, including by mixing, for a particular purpose (ACSSU031)
Year 3 Science
- A change of state between solid and liquid can be caused by adding or removing heat (ACSSU046)
Year 5 Science
- Solids, liquids and gases have different observable properties and behave in different ways (ACSSU077)
Year 6 Science
- Changes to materials can be reversible, such as melting, freezing, evaporating; or irreversible, such as burning and rusting (ACSSU095)
Syllabus outcomes: ST1-12MW, ST2-12MW, ST2-7PW, ST3-12MW.
Time required: Several hours for freezing water, 10 – 15 minutes for melting ice and adding colours.
Resources required: One or two plastic bowls suitable for freezing, water, salt, watercolour paints or food colouring of different colours, small cups or bowls for mixing paints, eye dropper.
Safety advice: None.
Keywords: Ice, salt, colour, melt.
Cool Australia’s curriculum team continually reviews and refines our resources to be in line with changes to the Australian Curriculum.